1) A biome is a specific area characterized by its climate, plants, animals, soil, and location. Biomes include forests, grasslands, deserts, and aquatic ecosystems.
2) Key factors like latitude and altitude determine different biomes across Earth. Areas near the equator tend to be tropical rainforests, while higher latitudes support temperate forests, grasslands, and tundra ecosystems.
3) Biomes are classified as terrestrial, freshwater, or marine based on whether they are found on land, in freshwater, or in oceans. Examples of different biomes like tropical rainforests, grasslands, and wetlands are described.
This document defines key terms and concepts related to ecosystems, including:
- Ecology is the study of interactions between organisms and their environment. The environment includes abiotic (non-living) and biotic (living) factors.
- A niche describes an organism's role and interactions within an ecosystem. A habitat is the specific place where an organism lives.
- Food chains and food webs show how energy and matter move through an ecosystem. Organisms are arranged into trophic levels.
- Ecological pyramids graphically represent quantitative differences between trophic levels, with numbers, biomass, and productivity generally decreasing upwards. This reflects the loss of energy at each transfer between trophic levels.
Succession is the orderly replacement of communities over time leading to a climax community. There are two main types: primary succession begins on new surfaces like bare rock, while secondary succession begins in areas disturbed by events like fires. Secondary succession proceeds faster since soil remains. Pioneer communities in early succession have unstable environments and populations that alter conditions, while climax communities are stable with efficient nutrient cycling. Succession leads to increasing complexity, biomass, and species diversity over time.
This document discusses concepts related to population growth and ecological succession. It begins by explaining population growth curves, including 'S' and 'J' curves, and the factors that influence population size, such as limiting factors and carrying capacity. It then covers population regulation, including density-dependent and density-independent factors. The document also discusses r-selected and K-selected species and survivorship curves. Finally, it summarizes the processes of primary and secondary ecological succession, including examples of succession in different habitats like bare rock and wetlands.
- Primary productivity refers to the production of organic compounds by primary producers like plants through photosynthesis. It is measured as the energy or biomass produced per unit area and time.
- Gross primary productivity is the total amount of organic compounds produced by primary producers before accounting for their respiration. Net primary productivity is the amount remaining after respiration.
- Secondary productivity refers to the production of new biomass by heterotrophs at the consumer trophic levels through consumption and digestion of primary producers and other organisms.
The document discusses key concepts in ecology including organisms, populations, communities, species, habitats, trophic levels, food chains, food webs, and ecological pyramids. It provides definitions and examples for each term. Specifically, it defines an organism as a fundamental functional unit that interacts directly with its environment. A population refers to organisms of the same species in proximity to one another. A community includes all populations in a given area. Trophic levels represent the feeding position in food chains and food webs. Pyramids of numbers, biomass and productivity show the relative quantities at each trophic level in an ecosystem.
The document summarizes different biomes and aquatic ecosystems. It describes 9 major biomes: tundra, taiga, temperate rainforest, temperate deciduous forest, grasslands, chaparral, deserts, savanna, and tropical rainforests. It also discusses various environmental factors that influence aquatic ecosystems such as temperature, light, salinity, currents, dissolved oxygen, and zonation. Finally, it notes some human impacts on aquatic ecosystems like water contamination from pharmaceuticals and agricultural runoff.
The document defines key population concepts and models of population growth. It explains that a population is a group of the same species that lives in the same area and competes for resources. Population size and characteristics can change over time in response to environmental factors and availability of resources. The carrying capacity is the maximum population size an environment can sustain indefinitely given available resources. Population growth follows either exponential or logistic models. Exponential growth is unlimited until resources are constrained, after which logistic growth tapers off as the population approaches the carrying capacity. Examples are given of bacteria population growth and historical reindeer population on Kaibab Plateau.
The document defines key terms related to ecosystems, including environment, ecosystem, population, community, habitat. It explains that living parts of an ecosystem depend on non-living parts like water, air, sunlight and on other living parts for food. It provides examples of coastal redwood trees and foxes/rabbits to illustrate these relationships. It describes how a habitat must provide everything a plant or animal needs, using the example of a sidewinder snake in the desert. It defines a population as a group of the same species that live together, and a community as all living things that share a place. Finally, it explains how ecosystems can change over time, such as due to increased rain or a fire altering plant and animal populations
This document defines key terms and concepts related to ecosystems, including:
- Ecology is the study of interactions between organisms and their environment. The environment includes abiotic (non-living) and biotic (living) factors.
- A niche describes an organism's role and interactions within an ecosystem. A habitat is the specific place where an organism lives.
- Food chains and food webs show how energy and matter move through an ecosystem. Organisms are arranged into trophic levels.
- Ecological pyramids graphically represent quantitative differences between trophic levels, with numbers, biomass, and productivity generally decreasing upwards. This reflects the loss of energy at each transfer between trophic levels.
Succession is the orderly replacement of communities over time leading to a climax community. There are two main types: primary succession begins on new surfaces like bare rock, while secondary succession begins in areas disturbed by events like fires. Secondary succession proceeds faster since soil remains. Pioneer communities in early succession have unstable environments and populations that alter conditions, while climax communities are stable with efficient nutrient cycling. Succession leads to increasing complexity, biomass, and species diversity over time.
This document discusses concepts related to population growth and ecological succession. It begins by explaining population growth curves, including 'S' and 'J' curves, and the factors that influence population size, such as limiting factors and carrying capacity. It then covers population regulation, including density-dependent and density-independent factors. The document also discusses r-selected and K-selected species and survivorship curves. Finally, it summarizes the processes of primary and secondary ecological succession, including examples of succession in different habitats like bare rock and wetlands.
- Primary productivity refers to the production of organic compounds by primary producers like plants through photosynthesis. It is measured as the energy or biomass produced per unit area and time.
- Gross primary productivity is the total amount of organic compounds produced by primary producers before accounting for their respiration. Net primary productivity is the amount remaining after respiration.
- Secondary productivity refers to the production of new biomass by heterotrophs at the consumer trophic levels through consumption and digestion of primary producers and other organisms.
The document discusses key concepts in ecology including organisms, populations, communities, species, habitats, trophic levels, food chains, food webs, and ecological pyramids. It provides definitions and examples for each term. Specifically, it defines an organism as a fundamental functional unit that interacts directly with its environment. A population refers to organisms of the same species in proximity to one another. A community includes all populations in a given area. Trophic levels represent the feeding position in food chains and food webs. Pyramids of numbers, biomass and productivity show the relative quantities at each trophic level in an ecosystem.
The document summarizes different biomes and aquatic ecosystems. It describes 9 major biomes: tundra, taiga, temperate rainforest, temperate deciduous forest, grasslands, chaparral, deserts, savanna, and tropical rainforests. It also discusses various environmental factors that influence aquatic ecosystems such as temperature, light, salinity, currents, dissolved oxygen, and zonation. Finally, it notes some human impacts on aquatic ecosystems like water contamination from pharmaceuticals and agricultural runoff.
The document defines key population concepts and models of population growth. It explains that a population is a group of the same species that lives in the same area and competes for resources. Population size and characteristics can change over time in response to environmental factors and availability of resources. The carrying capacity is the maximum population size an environment can sustain indefinitely given available resources. Population growth follows either exponential or logistic models. Exponential growth is unlimited until resources are constrained, after which logistic growth tapers off as the population approaches the carrying capacity. Examples are given of bacteria population growth and historical reindeer population on Kaibab Plateau.
The document defines key terms related to ecosystems, including environment, ecosystem, population, community, habitat. It explains that living parts of an ecosystem depend on non-living parts like water, air, sunlight and on other living parts for food. It provides examples of coastal redwood trees and foxes/rabbits to illustrate these relationships. It describes how a habitat must provide everything a plant or animal needs, using the example of a sidewinder snake in the desert. It defines a population as a group of the same species that live together, and a community as all living things that share a place. Finally, it explains how ecosystems can change over time, such as due to increased rain or a fire altering plant and animal populations
This document provides an introduction to the key concepts of ecology, including:
- Ecology is defined as the study of the interactions between organisms and their environment. It was coined by German biologist Ernst Haeckel in 1869 from Greek roots meaning "house" and "study."
- Ecology examines the interrelationships between living things and non-living components at different organizational levels from individual species to entire biomes. Key areas of study include autecology, synecology, aquatic ecology, terrestrial ecology, and classifications based on the environment.
- Ecosystems are the functional units of ecology, containing all the living and non-living components that interact within a defined space. Major ecosystem types include
Plants and animals depend on each other to survive in an ecosystem. They are biotic factors that interact through providing food and shelter. Animals also affect plants through behaviors like eating some plants, fertilizing soil, and burrowing. Abiotic factors like sunlight, water, soil conditions and climate also impact ecosystems by influencing what plants can grow and whether animals have resources to live. Ecosystems vary based on location and climate, with different communities in places like rainforests, deserts, deciduous forests, savannas, taigas and tundras.
The document defines key terms related to ecosystems, including that an ecosystem was first defined by A.G. Tansley as the basic functional unit of organisms interacting with each other and their environment. It provides examples of different ecosystem types, such as grasslands, forests, and oceans. Within ecosystems, biotic components include producers, consumers, and decomposers. Energy flows through ecosystems from producers to higher trophic levels, and nutrients cycle through ecosystems via processes like decomposition. Ecological pyramids illustrate the structure of ecosystems by trophic level.
Use evidence to support arguments that changing any physical or biological component of an ecosystem may result in shifts in the populations of species in the ecosystem.
This document discusses the components and interactions within ecosystems. It defines an ecosystem and identifies its two main components as abiotic (non-living) factors like climate and biotic (living) organisms. The biotic components are classified into producers, consumers, and decomposers. Their interactions through food chains, food webs, and symbiosis are explained. Competition between organisms and predator-prey relationships are also covered.
The document discusses the structure and function of ecosystems, including their components, productivity, energy flow through trophic levels, decomposition, nutrient cycling, ecological pyramids, succession, and food webs. Ecosystems are made up of biotic and abiotic factors, with producers, consumers, and decomposers transferring energy as it flows through trophic levels according to laws of thermodynamics. Succession over time leads to climax communities and nutrient cycling maintains the standing stocks of elements within the ecosystem.
1) Ecosystems have trophic structures that determine energy flow and nutrient cycling through feeding relationships between species organized into trophic levels.
2) Producers, which include photosynthetic plants, algae, and bacteria, occupy the first trophic level and support all other levels by harnessing solar or chemical energy.
3) Consumers are organisms that feed on producers or other consumers and are ranked according to the trophic level they occupy, such as herbivores on the first level or carnivores on higher levels.
This document discusses the structure and function of ecosystems. It defines an ecosystem as a community of living organisms interacting with each other and their non-living environment. An ecosystem includes biotic components like producers, consumers, and decomposers, as well as abiotic components from the lithosphere like soil, water, and weather. It then explains key ecosystem functions - productivity refers to the rate of biomass production, decomposition recycles organic matter into nutrients, energy flows through the ecosystem from producers to consumers, and nutrients cycle through the living and nonliving components of the ecosystem.
This document provides an overview of ecology and ecosystems. It defines ecology as the study of the relationships between living organisms and their environment. The key components of ecosystems discussed include producers, consumers, decomposers, trophic levels, food chains, food webs, and biogeochemical cycles. Specific cycles explained in detail are the water, carbon, oxygen, and nitrogen cycles which describe how these essential elements move between living and nonliving parts of the environment.
This document provides an introduction to key concepts in ecology, including biomes, ecological niches, succession, energy and biomass pyramids, and nutrient cycles. It defines ecology as the study of interactions among organisms and between organisms and their environment. It also describes the main biomes like tundra, taiga, grasslands, and rainforests. Primary and secondary succession are discussed as ways communities develop over time.
This document provides an introduction to forest ecology, discussing key concepts and topics. It covers three major topics: site factors like climate, substrate and hydrology that influence forest composition; forest succession and changes over time due to disturbance; and natural disturbances like flooding, fire, wind, ice, insects and disease. Forest ecology examines how living organisms interact with each other and the physical environment in complex forest ecosystems.
This document discusses ecosystems and their conservation. It begins by defining an ecosystem as an area composed of biotic and abiotic factors that includes a biological community and its physical environment. It then discusses the importance of conserving ecosystems and biodiversity, as well as some of the threats they face from human activities and natural calamities. The document provides information on different types of ecosystems like forests, deserts, grasslands, and aquatic ecosystems. It highlights the roles of ecosystems and the need for their conservation.
The document discusses various climate groups and biomes. It begins by defining climate and weather, noting that climate refers to long-term atmospheric conditions and patterns that determine the types of ecosystems in a region. It then describes three major climate groups (low, mid, and high latitudes), providing details on representative climates and biomes within each group, such as tropical rainforests, grasslands, and tundra. Climate is the dominant factor controlling global patterns of biomes.
Ecosystems cycle materials and energy through producers, consumers, and decomposers. Photosynthesis and respiration drive carbon and nitrogen cycles. Primary productivity is the gain by producers, while secondary productivity is the gain by consumers. Limiting factors like temperature, resources, and weather influence populations. Succession involves predictable changes in communities over time from pioneer to climax species. Measuring ecosystem changes involves repeated transects, satellite imagery, and environmental impact assessments.
An ecosystem is a community of organisms and their physical environment that interact. It includes biotic factors like producers, consumers, and decomposers, as well as abiotic factors such as climate, soil, and water. Energy flows through the ecosystem in food chains and webs while matter is recycled through biotic and abiotic interactions. Ecological succession over time leads to the development of climax communities as the environment changes.
The document summarizes key topics in ecosystems, including:
1) Ecosystems are defined as the sum of all organisms in an area and the abiotic factors they interact with. Energy flows and matter cycles through ecosystems.
2) Gross primary production (GPP) is the amount of light energy converted to chemical energy by autotrophs. Net primary production (NPP) is the amount remaining after respiration. NPP determines the base of the food chain.
3) Pyramids illustrate the transfer of numbers, biomass, and energy between trophic levels, with typically only 10% passing to each higher level.
Primary productivity in a grassland ecosystemJon Mane
The document discusses primary productivity in a grassland ecosystem. It defines primary productivity as the rate at which primary producers like plants assimilate solar energy. It describes factors that affect primary productivity such as temperature, water, light, and nutrients. It outlines an experiment to measure net primary productivity in different microhabitats (open vs shaded areas) of a grassland by placing quadrants and harvesting plant biomass over a 28 day period.
The document summarizes the key components of an ecosystem. It describes abiotic components as non-living physical and chemical factors like air, water, soil, and basic elements. Biotic components are the living parts, including populations of animals, plants, and microbes. It outlines the relationships between these groups, with autotrophs (producers) converting inorganic materials to organic materials through photosynthesis, heterotrophs (consumers) feeding on autotrophs or other organisms, and saprotrophs (decomposers) breaking down dead organic matter and recycling nutrients.
ecosystem topic will help you in understanding the basic means and other components like structure, functions, types, ecological pyramid, energy flow in ecosystem and many more environment related studies.
Aquatic biomes occupy most of the biosphere and are divided into marine and freshwater biomes. The marine biome contains the world's oceans, which cover 70% of the Earth and are divided into layers. They provide many natural resources and support ecosystems like coral reefs and estuaries. Freshwater biomes include ponds, lakes, rivers, and wetlands and have a lower salt concentration than marine biomes. They are important sources of water, food, transportation, recreation and more.
There are two main types of aquatic biomes: freshwater and marine. Freshwater biomes include lakes, ponds, rivers, streams, and wetlands. Marine biomes include oceans, coral reefs, and estuaries. Both freshwater and marine biomes can be physically stratified based on variables like light, temperature, and nutrients. Primary productivity in aquatic ecosystems is limited by available light, nutrients, and temperature, with nutrients often being the limiting factor for growth.
This document provides an introduction to the key concepts of ecology, including:
- Ecology is defined as the study of the interactions between organisms and their environment. It was coined by German biologist Ernst Haeckel in 1869 from Greek roots meaning "house" and "study."
- Ecology examines the interrelationships between living things and non-living components at different organizational levels from individual species to entire biomes. Key areas of study include autecology, synecology, aquatic ecology, terrestrial ecology, and classifications based on the environment.
- Ecosystems are the functional units of ecology, containing all the living and non-living components that interact within a defined space. Major ecosystem types include
Plants and animals depend on each other to survive in an ecosystem. They are biotic factors that interact through providing food and shelter. Animals also affect plants through behaviors like eating some plants, fertilizing soil, and burrowing. Abiotic factors like sunlight, water, soil conditions and climate also impact ecosystems by influencing what plants can grow and whether animals have resources to live. Ecosystems vary based on location and climate, with different communities in places like rainforests, deserts, deciduous forests, savannas, taigas and tundras.
The document defines key terms related to ecosystems, including that an ecosystem was first defined by A.G. Tansley as the basic functional unit of organisms interacting with each other and their environment. It provides examples of different ecosystem types, such as grasslands, forests, and oceans. Within ecosystems, biotic components include producers, consumers, and decomposers. Energy flows through ecosystems from producers to higher trophic levels, and nutrients cycle through ecosystems via processes like decomposition. Ecological pyramids illustrate the structure of ecosystems by trophic level.
Use evidence to support arguments that changing any physical or biological component of an ecosystem may result in shifts in the populations of species in the ecosystem.
This document discusses the components and interactions within ecosystems. It defines an ecosystem and identifies its two main components as abiotic (non-living) factors like climate and biotic (living) organisms. The biotic components are classified into producers, consumers, and decomposers. Their interactions through food chains, food webs, and symbiosis are explained. Competition between organisms and predator-prey relationships are also covered.
The document discusses the structure and function of ecosystems, including their components, productivity, energy flow through trophic levels, decomposition, nutrient cycling, ecological pyramids, succession, and food webs. Ecosystems are made up of biotic and abiotic factors, with producers, consumers, and decomposers transferring energy as it flows through trophic levels according to laws of thermodynamics. Succession over time leads to climax communities and nutrient cycling maintains the standing stocks of elements within the ecosystem.
1) Ecosystems have trophic structures that determine energy flow and nutrient cycling through feeding relationships between species organized into trophic levels.
2) Producers, which include photosynthetic plants, algae, and bacteria, occupy the first trophic level and support all other levels by harnessing solar or chemical energy.
3) Consumers are organisms that feed on producers or other consumers and are ranked according to the trophic level they occupy, such as herbivores on the first level or carnivores on higher levels.
This document discusses the structure and function of ecosystems. It defines an ecosystem as a community of living organisms interacting with each other and their non-living environment. An ecosystem includes biotic components like producers, consumers, and decomposers, as well as abiotic components from the lithosphere like soil, water, and weather. It then explains key ecosystem functions - productivity refers to the rate of biomass production, decomposition recycles organic matter into nutrients, energy flows through the ecosystem from producers to consumers, and nutrients cycle through the living and nonliving components of the ecosystem.
This document provides an overview of ecology and ecosystems. It defines ecology as the study of the relationships between living organisms and their environment. The key components of ecosystems discussed include producers, consumers, decomposers, trophic levels, food chains, food webs, and biogeochemical cycles. Specific cycles explained in detail are the water, carbon, oxygen, and nitrogen cycles which describe how these essential elements move between living and nonliving parts of the environment.
This document provides an introduction to key concepts in ecology, including biomes, ecological niches, succession, energy and biomass pyramids, and nutrient cycles. It defines ecology as the study of interactions among organisms and between organisms and their environment. It also describes the main biomes like tundra, taiga, grasslands, and rainforests. Primary and secondary succession are discussed as ways communities develop over time.
This document provides an introduction to forest ecology, discussing key concepts and topics. It covers three major topics: site factors like climate, substrate and hydrology that influence forest composition; forest succession and changes over time due to disturbance; and natural disturbances like flooding, fire, wind, ice, insects and disease. Forest ecology examines how living organisms interact with each other and the physical environment in complex forest ecosystems.
This document discusses ecosystems and their conservation. It begins by defining an ecosystem as an area composed of biotic and abiotic factors that includes a biological community and its physical environment. It then discusses the importance of conserving ecosystems and biodiversity, as well as some of the threats they face from human activities and natural calamities. The document provides information on different types of ecosystems like forests, deserts, grasslands, and aquatic ecosystems. It highlights the roles of ecosystems and the need for their conservation.
The document discusses various climate groups and biomes. It begins by defining climate and weather, noting that climate refers to long-term atmospheric conditions and patterns that determine the types of ecosystems in a region. It then describes three major climate groups (low, mid, and high latitudes), providing details on representative climates and biomes within each group, such as tropical rainforests, grasslands, and tundra. Climate is the dominant factor controlling global patterns of biomes.
Ecosystems cycle materials and energy through producers, consumers, and decomposers. Photosynthesis and respiration drive carbon and nitrogen cycles. Primary productivity is the gain by producers, while secondary productivity is the gain by consumers. Limiting factors like temperature, resources, and weather influence populations. Succession involves predictable changes in communities over time from pioneer to climax species. Measuring ecosystem changes involves repeated transects, satellite imagery, and environmental impact assessments.
An ecosystem is a community of organisms and their physical environment that interact. It includes biotic factors like producers, consumers, and decomposers, as well as abiotic factors such as climate, soil, and water. Energy flows through the ecosystem in food chains and webs while matter is recycled through biotic and abiotic interactions. Ecological succession over time leads to the development of climax communities as the environment changes.
The document summarizes key topics in ecosystems, including:
1) Ecosystems are defined as the sum of all organisms in an area and the abiotic factors they interact with. Energy flows and matter cycles through ecosystems.
2) Gross primary production (GPP) is the amount of light energy converted to chemical energy by autotrophs. Net primary production (NPP) is the amount remaining after respiration. NPP determines the base of the food chain.
3) Pyramids illustrate the transfer of numbers, biomass, and energy between trophic levels, with typically only 10% passing to each higher level.
Primary productivity in a grassland ecosystemJon Mane
The document discusses primary productivity in a grassland ecosystem. It defines primary productivity as the rate at which primary producers like plants assimilate solar energy. It describes factors that affect primary productivity such as temperature, water, light, and nutrients. It outlines an experiment to measure net primary productivity in different microhabitats (open vs shaded areas) of a grassland by placing quadrants and harvesting plant biomass over a 28 day period.
The document summarizes the key components of an ecosystem. It describes abiotic components as non-living physical and chemical factors like air, water, soil, and basic elements. Biotic components are the living parts, including populations of animals, plants, and microbes. It outlines the relationships between these groups, with autotrophs (producers) converting inorganic materials to organic materials through photosynthesis, heterotrophs (consumers) feeding on autotrophs or other organisms, and saprotrophs (decomposers) breaking down dead organic matter and recycling nutrients.
ecosystem topic will help you in understanding the basic means and other components like structure, functions, types, ecological pyramid, energy flow in ecosystem and many more environment related studies.
Aquatic biomes occupy most of the biosphere and are divided into marine and freshwater biomes. The marine biome contains the world's oceans, which cover 70% of the Earth and are divided into layers. They provide many natural resources and support ecosystems like coral reefs and estuaries. Freshwater biomes include ponds, lakes, rivers, and wetlands and have a lower salt concentration than marine biomes. They are important sources of water, food, transportation, recreation and more.
There are two main types of aquatic biomes: freshwater and marine. Freshwater biomes include lakes, ponds, rivers, streams, and wetlands. Marine biomes include oceans, coral reefs, and estuaries. Both freshwater and marine biomes can be physically stratified based on variables like light, temperature, and nutrients. Primary productivity in aquatic ecosystems is limited by available light, nutrients, and temperature, with nutrients often being the limiting factor for growth.
The document summarizes and compares two ecosystems in Puerto Rico: Bosque Seco de Guánica and El Yunque National Forest. It describes the different forest areas within each ecosystem, including the types of trees and canopy layers. It also discusses the differences in rainfall, soil composition, and how each ecosystem has adapted. Finally, it provides details on some of the unique flora and fauna found in each forest and some environmental problems currently facing them.
This document summarizes the major water biomes on Earth. It notes that 75% of the Earth's surface is covered by water and that most of the biosphere consists of aquatic ecosystems. It then describes the main zones of both freshwater and saltwater environments, including photic and aphotic zones, benthic zones, categories of freshwater (rivers, lakes, wetlands), coastal wetlands, estuaries, and marine zones. It provides examples of characteristic organisms found in each biome.
The document divides the biosphere into six major biomes: tundra, coniferous forest, deciduous forest, tropical rainforest, grasslands, and desert. Each biome has a distinct climate defined by factors like temperature and rainfall that influence the soil and types of plants and animals that can survive there. The biomes range from the bitterly cold tundra to the very warm and moist tropical rainforest.
An ecosystem is defined as living things (communities) and nonliving things that interact in an area. All energy in an ecosystem ultimately comes from the sun. Ecosystems differ based on factors like the amount of water, sunlight, and type of soil. Every community contains three member types: producers, consumers, and decomposers. Ecosystems can change due to natural causes like drought, disease, fire, or overpopulation, or due to human causes such as water pollution, air pollution, land pollution, or construction. Humans can help prevent ecosystem changes by using resources wisely, enacting pollution control laws, cleaning up litter, and keeping waterways clean.
The document discusses the major biomes of the world, providing details on their climates, plants, and animals. It defines a biome as a large geographical region characterized by a specific climate and distinct types of plants and animals. Biomes discussed include temperate deciduous forests, coniferous forests, tropical rainforests, temperate grasslands, savannas, deserts, and tundra. For each biome, average yearly rainfall and temperature ranges are given along with examples of common plant and animal life.
This document describes the major biomes of the world, including tundra, desert, grassland, forest, marine, and freshwater biomes. It provides details on the characteristic climate, plants, and animals of each biome. Some of the biomes discussed in more depth include tundra, savanna, boreal forest, hot and dry desert, oceans, and ponds/lakes. The document aims to explore the defining features of different biomes globally.
Tinjauan pustaka menjelaskan geologi, tektonik, dan sistem petroleum Cekungan Barito. Cekungan ini terbentuk akibat rifting pada Eosen dan inversi sesar pada Miosen. Batuan dasarnya terdiri dari kompleks Barito Platform dan Meratus. Formasi-formasi utama meliputi Tanjung, Berai, Warukin, dan Dahor yang berisi reservoir pasir dan batubara serta batuan penyegel lempung. Sumber hidrokarbon berasal dari batubara
The document discusses different types of relief models that shape landscapes through erosion and deposition. The main models covered are fluvial (river), torrential, glacial, karstic (subterranean water), littoral (coastal), and eolic (wind-driven).
The fluvial model forms valleys, floodplains, and wave-cut platforms near rivers. The torrential model produces canyons and gullies through powerful erosion. The glacial model sculpts U-shaped valleys and cirques through ice erosion. The karstic model forms caves and sinkholes through rock dissolution. The littoral model generates cliffs, beaches, and arches along coastlines. The e
The document provides information about teaching biology standard 5.2 which involves inferring the types of organisms native to specific biomes. It explains that each biome contains a great deal of information and some biomes share similar plant and animal life, making this standard challenging to teach. It then defines what a biome is and provides examples of the major biomes - tundra, desert, grassland, taiga, temperate forest, and rainforest - including characteristics, plants, and animals commonly found in each one. Users can click on individual biomes for more details.
This document defines biomes and provides details on the distribution, structure, and relative productivity of several major biomes, including tropical rainforests, deserts, tundra, temperate deciduous forests, prairies, savannas, chaparral, coral reefs, estuaries, lakes and rivers. It lists recommended websites for further information on biomes and their global distribution. Key details are provided for each biome.
This document provides an overview of different types of landforms and the geological processes that form them. It discusses lithological landforms such as volcanic features like lava fields, craters, and plateaus. Karst landforms like caves and stalactites/stalagmites are formed by the dissolution of limestone. Climate landforms include glacial features from alpine glaciers and periglacial features in dry temperate zones. Structural landforms are related to rock structures. Coastal landforms result from erosion and deposition by sea processes and include cliffs, arches, lagoons, and marshes. For each landform type, examples of specific features are given along with the geological agents and processes responsible
An ecosystem is formed by the interactions between living and non-living things in an environment. A biome is a group of ecosystems that have similar climates and contain plant and animal species adapted to those conditions. There are several major biomes including tundra, taiga, grasslands, deserts, forests, rainforests, marine, and freshwater ecosystems.
The document defines key terms related to ecology, including habitat, trophic levels, food chains, food webs, and ecological pyramids. It explains that a habitat is the environment where an organism lives, trophic levels refer to an organism's position in a food chain, and food chains and webs show feeding relationships between organisms. Ecological pyramids graphically represent biomass, numbers of organisms, and energy at different trophic levels, with producers at the base and higher-level consumers at the top. Biomass and numbers pyramids can be upright, inverted, or partially upright, while energy pyramids are always upright due to energy loss between trophic levels.
1. Biomes are defined as large regions with similar climates and ecological communities. The main biomes include tundra, taiga, temperate rainforest, temperate deciduous forest, grasslands, deserts, and tropical rainforests.
2. Aquatic ecosystems are influenced by environmental factors like temperature, light, salinity, currents, dissolved oxygen, and depth. They can be divided into zones based on these factors.
3. Human impacts on aquatic ecosystems include contamination from pharmaceuticals and agricultural runoff carrying fertilizers and traces of antibiotics into waterways.
This document describes different types of habitats and ecosystems. It discusses forest, desert, and tundra habitats. Forest habitats cover large areas and provide shade and protection for many animals. Deserts cover over one-third of the world's land and are very hot and dry. The tundra habitat is located near the North Pole and about one-fifth of the earth's land is tundra. Tundra has permanently frozen ground that only supports low growing plants. An ecosystem includes a habitat, the living things within it, and their interactions.
This document describes the natural ecosystem of a river, including animals like snakes, frogs, birds, fish and ducks, as well as plants like grass, flowers and trees. The river contains water and flows under a bridge, surrounded by the sky.
This document discusses different biomes and ecosystems. It begins by defining a biome as a large area characterized by its climate, vegetation, and wildlife. It then lists and describes several major biomes including forest biomes (tropical rainforest, temperate forest, taiga), tundra biome, grassland biome, desert biome, chaparral biome, marine biome, and freshwater biome. For each biome it provides details on climate, location examples, and characteristic plant and animal species. The document concludes by identifying three major threats to tropical rainforest biomes as deforestation, over-exploitation of resources, and climate change.
It tackles about ecosystem and helps students and teachers to understand from being complex into simple presentation plus adding quiz for class progress
Global climate change threatens all of Earth's biomes. The rainforest biome is especially at risk due to species' inability to adapt to temperature and precipitation changes. Tundra and desert biomes may no longer support their current vegetation. Oceans are also impacted through changes in circulation, erosion, sea levels, and species distribution. All biomes will experience fluctuations that endanger existing plants and animals. Collective action is needed to spread awareness and address the causes and effects of climate change globally.
Global climate change threatens all of Earth's biomes. The rainforest biome is especially at risk due to species' inability to adapt to temperature and precipitation changes. Tundra and desert biomes may no longer support their current vegetation. Oceans are also impacted through changes in circulation, erosion, sea levels, and species distribution. All biomes will experience fluctuations that endanger existing plants and animals.
Science 7 notes gb lab 01 which biome where 2012 20 13MrCool3
This document provides an overview of biomes and ecosystems, including key terms, characteristics of major land and aquatic biomes, and supporting concepts like adaptation, dormancy, hibernation, and migration. It aims to help students differentiate between ecosystems and biomes, investigate and understand the characteristics of terrestrial, marine, and freshwater biomes, and compare and contrast the biotic and abiotic features of these major biomes.
- Ecosystems are natural units comprising living organisms and their non-living environment that interact to form a self-supporting system.
- The document discusses key components and functions of ecosystems, including energy and nutrient cycles. It also addresses human impacts such as ecosystem degradation through pollution, deforestation, and unsustainable resource use.
- Specific cycles described include the water, carbon, oxygen, and nitrogen cycles, which regulate important components like water, carbon dioxide, oxygen, and nitrogen in nature. These cycles interconnect all living and non-living parts of ecosystems.
This document provides an overview of biodiversity and different ecosystem types. It defines biodiversity and explains the importance of high biodiversity for maintaining ecosystem stability. The document then describes the key components of ecosystems, including biotic factors (producers, consumers, decomposers) and abiotic factors (air, water, nutrients). It also defines and provides examples of different ecosystem types, such as forests (tropical rainforests, deciduous forests), grasslands, tundra, deserts, freshwater and marine ecosystems. Assessment activities are included to test understanding of matching ecosystem types to images and identifying biotic and abiotic components in an ecosystem.
This document discusses factors that shape ecosystems and communities. It explains that climate is determined by factors like greenhouse gases, latitude, and ocean currents. Ecosystems are shaped by biotic interactions between organisms as well as abiotic factors like temperature and soil. Communities change over time through ecological succession as environments change and new species move in. The document outlines 10 major terrestrial biomes and describes 3 main types of aquatic ecosystems - freshwater, estuaries, and marine - which are classified based on factors like depth, flow, and salinity.
This document discusses the major types of ecosystems. It defines terrestrial ecosystems as land ecosystems like grasslands, deserts, and forests. Aquatic ecosystems are divided into freshwater ecosystems found in lakes, rivers, and wetlands, and marine ecosystems found in oceans. Some key points made are:
- Terrestrial ecosystems are differentiated based on dominant plant life and climate factors. Examples given are deserts, grasslands, and forests.
- Aquatic ecosystems include freshwater habitats like lakes and rivers, as well as marine habitats like coral reefs and coastal wetlands.
- Ecosystems maintain a balance and ecological succession between living and non-living elements. Human activities can disrupt this balance, threatening wildlife conservation
This document provides information about a social studies lesson plan for Class VIII on the topic of geography, land, soil, water, natural vegetation, and wildlife. It includes 4 learning periods that cover different objectives and activities. The objectives focus on understanding land use and distribution of population, causes of landslides and methods of soil conservation, availability and uses of water and methods of water conservation, and natural vegetation, wildlife, and their conservation.
This document provides information about ecosystems. It begins by defining an ecosystem as a community of living organisms interacting with their environment. It then describes the main components of ecosystems, including producers, consumers, and decomposers.
It classifies ecosystems into two main types - terrestrial and aquatic. Terrestrial ecosystems discussed include forests, deserts, grasslands, and mountains. Forest ecosystems are described in more detail. Aquatic ecosystems include marine, freshwater, and wetlands.
The document also covers food chains and webs, and ecological pyramids including pyramids of numbers, biomass and energy. Finally, it introduces the topic of environmental pollution, which will be covered in more depth in the next unit.
The document summarizes the benefits of sports participation for children's development in 3 areas: self-esteem, social skills, and emotional balance. It provides background information on how sports can boost children's self-esteem through developing physical competence. It also discusses how team sports foster social skills by promoting interaction, cooperation, and a sense of belonging. Finally, it notes that physical activity through sports can stabilize moods and reduce anxiety or depression by increasing endorphin production.
The document discusses different types of natural vegetation and land use in India. It describes six main types of natural vegetation: tropical evergreen forests, tropical deciduous or monsoon forests, tropical thorn and shrub forests, desert vegetation, mangrove forests, and Himalayan vegetation. It provides details on the climate, rainfall levels, and prominent plant species found in each vegetation type. Land use involves agriculture, forestry, human settlements, and other activities.
There are two main categories of biomes: terrestrial and aquatic. Terrestrial biomes include tundra, rainforests, savannas, taiga, temperate forests, temperate grasslands, alpine, chaparral, and deserts. Aquatic biomes include freshwater biomes like lakes and rivers, saltwater biomes like oceans, coral reefs, and estuaries where freshwater meets saltwater. Biomes are defined by their climate, plants, and animals, and examples are given of characteristics of different biomes like tropical rainforests, temperate forests, tundra, deserts, and grasslands.
Copy of Unit 6 Notes 1_ Climate_Biomes_Energy (1).pptxVandanaYadav400309
Soil is important as it provides nutrients for plant growth, acts as a habitat for many organisms, and stores water for plants. Soil quality depends on factors like its nutrient content, texture, and ability to retain water. Threats to soil include erosion from overgrazing, poor farming practices, and damage from human activities, which can lead to soil degradation and loss of fertile land. Conservation methods aim to protect soil quality and prevent erosion, such as contour plowing, terracing, no-till farming, crop rotation, use of windbreaks, and controlling water runoff. The type of soil that forms is influenced by properties of the parent rock material and climatic factors like temperature and precipitation.
The document is a quiz about ecology and biosphere topics. It contains 20 multiple choice questions about subjects like seasons, climate, biomes, population ecology, and more. Each question is followed by 1-3 paragraphs of information to help explain the topic and potential answers. The quiz covers a wide range of environmental science concepts.
Salient features of grassland, forest and desert ecosystemsuru_yadav
This document provides information about three main terrestrial ecosystems: grasslands, forests, and deserts. It begins with an introduction to terrestrial ecosystems and their key features. It then discusses grasslands in more detail, including the types of grasslands, vegetation, evolution, climates, biodiversity, human impacts, and example animal species. Forest ecosystems are then examined, covering definitions, evolution, ecology, and example plant and animal species. Finally, it briefly touches on desert ecosystems, their vegetation and example animal species. The document aims to highlight the salient features and differences between these three major terrestrial biomes.
The document discusses major ecosystems of the Earth. It defines an ecosystem as consisting of biotic (living) and abiotic (non-living) components that interact. The major ecosystems discussed are aquatic ecosystems including freshwater, estuarine, and marine ecosystems, and terrestrial ecosystems. Specific biomes within terrestrial ecosystems mentioned include alpine, chaparral, and tropical rainforests.
I am pleased to present an outstanding Sample ESS IA that secured an impressive 28 out of 30 marks, resulting in a remarkable 7-point score. This exemplar serves as a valuable reference and resource for your ESS class, offering comprehensive insights and invaluable guidance for both students and educators alike.
Key Points:
Exceptional Achievement: The IA achieved a remarkable 28 out of 30 marks, showcasing excellence in content, research, and presentation.
7-Point Performance: Scoring a perfect 7 points in the IA demonstrates a deep understanding of Environmental Systems and Societies.
Educational Resource: This exemplary IA serves as an educational resource, providing a model for structuring, researching, and presenting ESS projects.
Invaluable Insights: Reviewing this IA will offer invaluable insights into what constitutes a high-scoring ESS IA, helping students aim for excellence.
Guidance for Students: Students can utilize this IA as a reference to enhance their own IA projects, aiming for similarly outstanding results.
Educator's Tool: Educators can use this IA to exemplify quality work to their students, facilitating better understanding of assessment expectations.
We encourage you to make the most of this exemplary ESS IA as a guiding light in your pursuit of excellence in Environmental Systems and Societies studies.
This document outlines an investigation into the effect of carbon dioxide emissions on temperature in the USA and UK from 2009-2019. The research question asks to what extent different levels of CO2 concentration in the USA vs the UK affect average temperature. Secondary data on CO2 emissions and average temperature in both countries will be collected from credible sources over the 10-year period. The hypothesis is that there is a correlation between CO2 concentrations and temperature trends, and differences in CO2 levels between the countries will result in differences in temperature trends. Key variables are CO2 concentration as the independent variable and average temperature as the dependent variable.
The document contains contact information for ESSGurumantra.com with their Gmail ID repeated in 14 lines. It concludes by listing their social media profiles and podcast/music platforms where users can follow the organization, including their website, Facebook, YouTube channel, Twitter, Instagram, LinkedIn, SlideShare, Pinterest, Spotify, SoundCloud, and Google Podcast.
The document discusses various topics related to genetics and biotechnology including genetic engineering, polymerase chain reaction (PCR), DNA profiling, and genetically modified foods. It provides definitions and explanations of key terms and processes such as how PCR is used to amplify DNA, the steps involved in PCR including denaturation, annealing and elongation, and how gel electrophoresis can be used to analyze PCR products. It also summarizes techniques like DNA profiling that are used for forensic investigations and paternity testing.
This document contains a series of logic and reasoning puzzles to test creativity and problem-solving skills. It includes 25 puzzles of varying difficulty across several categories like word puzzles, number puzzles, and visual puzzles. The puzzles require skills like rearranging letters, words, or images to find hidden meanings and complete word or phrase patterns.
The document is an exam for the Environmental Systems Standard Level course, consisting of 30 multiple choice questions testing various concepts related to environmental science. Some of the topics covered include population ecology, energy flow, greenhouse gases, the carbon and nitrogen cycles, and atmospheric structure. The exam is 45 minutes long and candidates are instructed to choose the single best answer for each question and mark their choice on an answer sheet.
The document provides lists of top 10 websites in various categories that are useful for career development and job searching. These categories include sites for careers, in-demand tech skills in 2019, learning Excel for free, free online education, reviewing resumes for free, and preparing for interviews. The lists highlight popular websites like LinkedIn, Coursera, Khan Academy, Leetcode, and ResumeGenius that can help with tasks like networking, developing skills, getting education/training, improving resumes and interview skills.
Very interesting - Can you guess what is common between all these prominent temples.
If your answer is, they all are Shiva temples, you are only partially correct.
It is actually the longitude in which these temples are located.
They all are located in 79° longitudes. What is surprising and awesome is that how the architects of these temples many hundreds of kilometers apart came up with these precise locations without GPS
1. Madurai is unique as it is guarded by 3 surrounding hills and was once full of Kadabam trees.
2. The Nandi statue at Meenakshi Amman Temple is one of the largest in Asia. Tirumalai Naicker Mahal is the largest palace in Tamil Nadu, built without using ceiling supports.
3. Gandhi Museum was originally the palace of Ranimangammal and is the only museum dedicated to Gandhi outside of India. It houses the blood-stained shawl Gandhi was wearing when assassinated.
K.Guru Charan Kumar, IB ESS Teacher at Pathways World School, Aravali discusses the importance of taking his IB students on field trips that enhance the learning they do in the classroom. Over the past year, K. Guru has shared numerous adventures with the IB community and we asked him to reflect on why field experience is central to his teaching.
Guru Charan Kumar KANAHAVEL attended the IB Asia Pacific DP Category 1 & 2 Workshops in Singapore from August 10-12, 2012 for the subject Environmental Systems and Societies. The certificate certifies his participation in subject sessions at the workshops organized by the IB Regional Office for Asia Pacific and led by experienced IB practitioners.
My mission is to deliver world-class international education power point presentation through the provision of high-quality curricula, assessment and services for the IGCSE EVM.
A wide range of materials and resources is available through my Slide share to support teachers and learners in Cambridge schools. Resources suit a variety of teaching methods in different international contexts.
The content of this power point presentation is designed to encourage reflection on the limits to growth and sustainable development for IGCSE EVM.
The content of this PowerPoint is structured as a series of learning outcomes that lay out what candidates should know, understand and be able to analyze and discuss.
Environmental Management is concerned not only with the impact of humankind on the planet but also with the patterns of human behavior necessary to preserve and manage the environment in a self-sustaining way. Study is linked to the areas of new thinking in environmental management, environmental economics and the quest for alternative technologies. Classroom studies and optional coursework allow candidates to obtain a local as well as a global perspective.
My mission is to deliver world-class international education power point presentation through the provision of high-quality curricula, assessment and services for the IGCSE EVM.
A wide range of materials and resources is available through my Slide share to support teachers and learners in Cambridge schools. Resources suit a variety of teaching methods in different international contexts.
The content of this power point presentation is designed to encourage reflection on the limits to growth and sustainable development for IGCSE EVM.
The content of this PowerPoint is structured as a series of learning outcomes that lay out what candidates should know, understand and be able to analyze and discuss.
Environmental Management is concerned not only with the impact of humankind on the planet but also with the patterns of human behavior necessary to preserve and manage the environment in a self-sustaining way. Study is linked to the areas of new thinking in environmental management, environmental economics and the quest for alternative technologies. Classroom studies and optional coursework allow candidates to obtain a local as well as a global perspective.
My mission is to deliver world-class international education power point presentation through the provision of high-quality curricula, assessment and services for the IGCSE EVM.
A wide range of materials and resources is available through my Slide share to support teachers and learners in Cambridge schools. Resources suit a variety of teaching methods in different international contexts.
The content of this power point presentation is designed to encourage reflection on the limits to growth and sustainable development for IGCSE EVM.
The content of this PowerPoint is structured as a series of learning outcomes that lay out what candidates should know, understand and be able to analyze and discuss.
Environmental Management is concerned not only with the impact of humankind on the planet but also with the patterns of human behavior necessary to preserve and manage the environment in a self-sustaining way. Study is linked to the areas of new thinking in environmental management, environmental economics and the quest for alternative technologies. Classroom studies and optional coursework allow candidates to obtain a local as well as a global perspective.
As part of the IB philosophy, one must understand that not everything can be taught within the classroom. Thus, field trips provide the perfect opportunity to apply ourselves fruitfully. Laden with their luggage, and appetite for knowledge, the group of ESS and Geography students readied themselves for the learning expedition to Sundarbans, West Bengal.
The most engaging component of ESS & Geo IBDP is the coursework/fieldwork which culminates in an Analytical report based on Primary Data which the students gather and work upon. In this context we are all set to embark on our journey to Sundarbans Delta (UNESCO World Heritage site) which is located in Kolkata. This year 41 IBDP students with 4 teachers ventured for the very first time in the country to visit the Sundarbans(Kolkata) for the field trip.
The IBDP ESS & Geography students studied “Ecological Footprints of Eco tourism & Environmental Sustainability, Quality and Patterns of Resource Consumption” with special reference to Mangrove forest of Sundarbans, West Bengal.
Farmers from Maldevta Village, who work in the lowest sector of the economy, have minimal land and resources to help them grow crops. This obligates them to enter the hills with their cattle to allow grazing. Farmers also clear some forest areas, to increase their farm land for more income, thus reducing the biodiversity. As a result of the reduced in forest area and resources, wild animals invade villages and destroy farmlands. In some cases, because of minimal knowledge of the chemical Pesticides, it’s overuse affects not only the farmland, but also nearby water resources as it leads to eutrophication. This relates to my RQ because after surveying the villagers and collecting the raw data from the Simpson’s Diversity index it allowed me to evaluate the effect of human intervention on the natural environment and thus evaluating the effect of Ecological Footprint.
This IA talks about research is to compare Simpson Diversity of four areas of Mahendrapur village based on the amount of sunlight received and the amount of nutrients found near the place where they are located (near the water body or away from the water body).
This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
Healing is the body’s response to injury in an attempt to restore normal structure and functions.
Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
This presentation was provided by Racquel Jemison, Ph.D., Christina MacLaughlin, Ph.D., and Paulomi Majumder. Ph.D., all of the American Chemical Society, for the second session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session Two: 'Expanding Pathways to Publishing Careers,' was held June 13, 2024.
Andreas Schleicher presents PISA 2022 Volume III - Creative Thinking - 18 Jun...EduSkills OECD
Andreas Schleicher, Director of Education and Skills at the OECD presents at the launch of PISA 2022 Volume III - Creative Minds, Creative Schools on 18 June 2024.
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptxEduSkills OECD
Iván Bornacelly, Policy Analyst at the OECD Centre for Skills, OECD, presents at the webinar 'Tackling job market gaps with a skills-first approach' on 12 June 2024
How to Setup Warehouse & Location in Odoo 17 InventoryCeline George
In this slide, we'll explore how to set up warehouses and locations in Odoo 17 Inventory. This will help us manage our stock effectively, track inventory levels, and streamline warehouse operations.
Temple of Asclepius in Thrace. Excavation resultsKrassimira Luka
The temple and the sanctuary around were dedicated to Asklepios Zmidrenus. This name has been known since 1875 when an inscription dedicated to him was discovered in Rome. The inscription is dated in 227 AD and was left by soldiers originating from the city of Philippopolis (modern Plovdiv).
4. Uneven Solar Heating and Latitude
Earth as a whole is in thermal equilibrium, but different latitudes are not.
Moving masses of air and ocean currents transport energy from
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locations with a surplus to those with a deficit.
5. Cell 3 North
Cold,
dry air
falls
Model of global air
circulation and
biomes.
The direction of air
flow and the ascent
and descent of air
masses in
convection cells
determine the
earth’s climatic
zones.
Moist air rises — rain
Polar cap
Arctic tundra
Evergreen
coniferous forest
60°
Temperate deciduous
forest and grassland
Desert
30°
Cell 2 North
Cool, dry
air falls
Cell 1 North
Moist
air rises,
cools, and
releases
moisture
as rain
Tropical deciduous forest
0°
Equator
Tropical
rain forest
Tropical deciduous forest
30°
60°
Desert
Temperate deciduous
forest and grassland
Cell 1 South
Cool, dry
air falls
Cell 2 South
Polar cap
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dry air Author-Guru IB/ESS
falls
Cell 3 South
5
6. Generalized effects of altitude and latitude on climate and biomes.
Parallel changes in vegetation occur when moving from the
Equator to the poles or from the lowlands to mountaintops.
Altitude
Mountain
Ice and snow
Tundra (herbs,
lichens,
mosses)
Coniferous
Forest
Latitude
Deciduous
Forest
Tropical
Forest
Tropical
Forest
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Forest
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Coniferous
Forest
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Tundra (herbs,
lichens, mosses)
Polar ice
and snow
6
12. High tide
Low tide
Sun
Sea level
0
Photosynthesis
Open Sea
50
Euphotic Zone
Estuarine
Zone
100
Continental
shelf
200
500
Bathyal Zone
1,000
Twilight
Coastal Zone
Depth in
meters
1,500
Abyssal Zone
2,000
4,000
5,000
10,000
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Darkness
3,000
13. DIVERSITY is a generic term for
heterogeneity. If may refer to:
1. Genetic diversity is the total number of genetic
characteristics of a specific species.
2. Habitat diversity is the diversity of habitats in a given
unit area.
3. Species diversity
a. Species richness – total number of species.
b. Species evenness – relative abundance of each
species.
c. Species dominance – the most abundant species.
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14. A
Figure A and B have
the same species
richness, but
different species
evenness.
B
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15. What is Biome?
A biome is a specific area characterized
by the animals and plants that live
within it, the climate conditions, the
amount of water available, the soil
conditions, and the location of the area.
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17. • The seven main biomes that can be found all
over the world.
• The Desert, Grasslands, Temperate
Deciduous Forests, Rainforests, Taiga, and
the Tundra
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18. CLASSIFICATION OF BIOMES
A fundamental classification of biomes is into:
• Terrestrial (land) biomes
• Freshwater biomes
• Marine biomes
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20. What is tropical rainforest ?
A tropical rainforest is an ecosystem usually
found around the equator,
They are common in Asia, Australia, Africa,
South America, Central America, Mexico and
on many of the Pacific Islands.
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22. Rainforests are home to half of all the living
animal and plant species on the planet.
Tropical rain forests are called the "world's
largest pharmacy" because over one-quarter of
modern medicines originate from its plants.
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23. DISTRIBUTION
The tropical forests are restricted to the small land
area between the latitudes 22.5 North and 22.5
South of the equator, or in other words between
the Tropic of Capricorn and the Tropic of Cancer.
Since the majority of Earth's land is located north
of the tropics, rainforests are naturally limited to a
relatively small area.
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27. CENTRAL AMERICA
Central America is famous for its large number
of tropical birds, including many kinds of
parrots
This region was once entirely covered with
rainforest, but large areas have been cleared for
cattle ranching and for sugar cane plantations.
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29. The photograph below shows a particular ecosystem.
1.State and briefly describe the ecosystem shown in the photograph
2. State whether you would expect ecosystems of the type shown in the
photograph to have a low, medium or high level of abiotic factors.
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30. THE AMAZON
The Amazon is the world's largest and most famous
rainforest.
The Amazon is home to more species of plants and
animals than any other ecosystem on the planet and
perhaps 30% of the world's species are found there.
American rainforests are most threatened today with
large-scale agriculture (especially soybeans), clearing
for cattle pasture, subsistence agriculture by poor
farmers, and logging.
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35. AFRICA
Central Africa holds the world's second largest
rainforest.
To the south east, the large island of Madagascar was
once intensively forested, but now much of it is gone.
Africa contains areas of high cloud forest, mangrove
swamps and flooded forests.
The island of Madagascar is home to many unique
plants and animals not found anywhere else.
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38. SOUTHERN ASIA
• The rainforests of Asia stretch from India and
Burma in the west to Malaysia and the islands
of Java and Borneo in the east.
•
• In Southeast Asia the climate is hot and humid
all year round. In the mainland Asia it has a
subtropical climate with torrential monsoon
rains followed by a drier period.
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45. What is Freshwater Biome?
The freshwater biome is a low-saline, or sweet
water, aquatic biome that covers one fifth of the
earth's surface.
Streams, rivers, swamps, bogs, ponds, lakes,
ditches, puddles, and canals comprise the
tributaries of the freshwater biome.
Animals and plants in this biome might reside
along the bank, beneath open water, on the
surface of the water, or move between water and
an adjacent biome.
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47. TYPES OF FRESHWATER
• There are 3 different types of freshwater
regions:
Ponds and Lakes
Streams and Rivers
Wetlands
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49. These regions range in size from just a few
square meters to thousands of square
kilometers. Scattered throughout the earth.
Many ponds are seasonal, lasting just a couple
of months.
Ponds and lakes may have limited species
diversity since they are often isolated from one
another and from other water sources like
rivers and oceans.
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59. Streams and rivers
These are bodies of flowing water moving in
one direction.
Streams and rivers can be found everywhere
— they get their starts at headwaters, which
may be springs, snowmelt or even lakes, and
then travel all the way to their mouths, usually
another water channel or the ocean.
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65. Numerous aquatic green plants and algae can
be found in these bodies.
Since there is less light, there is less diversity
of flora, and because of the lower oxygen
levels, fish that require less oxygen, such as
catfish and carp, can be found.
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67. 1.Name an organism in an ecosystem that you have studied and state one abiotic
factor that might affect this organism.
Organism:
.........................................................................................................
Factor:
...............................................................................................................
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69. Wetlands
Wetlands are areas of standing water that
support aquatic plants.
Marshes, swamps, and bogs are all considered
wetlands. Plant species adapted to the very
moist and humid conditions are called
Hydrophytes.
These include pond lilies, cattails, sedges,
tamarack, and black spruce. Marsh flora also
include such species as cypress and gum.
These support different species of animals,
such as shrimp, shellfish, and various grasses.
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77. What is Marine Biome?
The marine biome includes all the water that is on
the earth's surface.
The marine biome covers three fourths of the earth.
There are thousands of animals and plants in the
biome.
or
Marine regions cover about three-fourths of the
Earth's surface and include oceans, coral reefs, and
estuaries
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78. Marine Biomes are classified into three types.
• Coral reefs
• Estuaries
• Oceans
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79. Oceans
The largest of all the ecosystems, oceans are
very large bodies of water that dominate the
Earth's surface.
The ocean regions are separated into separate
zones: intertidal, pelagic, abyssal, and benthic.
All four zones have a great diversity of
species.
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81. The intertidal zone is where the ocean meets the
land — sometimes it is submerged and at other
times exposed, as waves and tides come in and
out.
The pelagic zone includes those waters further
from the land, basically the open ocean.
The pelagic zone is generally cold though it is
hard to give a general temperature range since,
just like ponds and lakes
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85. The benthic zone is the area below the pelagic
zone, but does not include the very deepest
parts of the ocean
The bottom of the zone consists of sand, slit,
and/or dead organisms.
The deep ocean is the abyssal zone. The water
in this region is very cold (around 3 C), highly
pressured, high in oxygen content, but low in
nutritional content.
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104. TUNDRA
• Tundra is the coldest of all the biomes. Tundra
comes from the Finnish word tunturi, meaning
treeless plain.
• It is noted for its frost-molded landscapes,
extremely low temperatures, little precipitation,
poor nutrients, and short growing seasons.
• Dead organic material functions as a nutrient
pool. The two major nutrients are nitrogen and
phosphorus. Nitrogen is created by biological
fixation, and phosphorus is created by
precipitation.
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105. Biomes of the World
1. The Tundra
1. Extremely cold climate
2. Low biotic diversity
3. Simple vegetation structure
4. Permafrost limited drainage
5. Short growing season
6. Energy and nutrients in the form
of dead organic material
7. Large population oscillations
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alpine vs arctic tundra
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109. Characteristics of tundra include:
• Extremely cold climate
• Low biotic diversity
• Simple vegetation structure
• Limitation of drainage
• Short season of growth and reproduction
• Energy and nutrients in the form of dead
organic material
• Large population oscillations
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110. • Tundra is separated into two types:
• Arctic tundra
• Alpine tundra
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112. Arctic tundra
• Arctic tundra is located in the northern
hemisphere, encircling the north pole and
extending south to the coniferous forests of the
taiga.
• The growing season ranges from 50 to 60 days.
• The average winter temperature is -34 C, but
the average summer temperature is 3-12 C
(37-54 F) which enables this biome to sustain
life.
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116. • There are no deep root systems in the
vegetation of the arctic tundra, however, there
are still a wide variety of plants that are able
to resist the cold climate.
• There are about 1,700 kinds of plants in the
arctic and subarctic, and these include:
• Low shrubs, sedges, reindeer mosses,
liverworts, and grasses
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118. • Animals are adapted to handle long, cold
winters and to breed and raise young quickly
in the summer.
• Animals such as mammals and birds also
have additional insulation from fat.
• Many animals hibernate during the winter
because food is not abundant.
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123. Alpine tundra
• Alpine tundra is located on mountains
throughout the world at high altitude where
trees cannot grow.
• The growing season is approximately 180
days.
• The nighttime temperature is usually below
freezing. Unlike the arctic tundra, the soil in
the alpine is well drained.
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126. • The plants are very similar to those of the arctic
ones and include:
• tussock grasses, dwarf trees, small-leafed shrubs,
and heaths
• Animals living in the alpine tundra are also well
adapted:
• Mammals: pikas, marmots, mountain goats, sheep,
elk
• Birds: grouselike birds
• Insects: springtails, beetles, grasshoppers, butterflies
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131. The desert biome
• Deserts cover about one fifth of the Earth's
surface and occur where rainfall is less than
50 cm/year.
• Most deserts have a considerable amount of
specialized vegetation, as well as specialized
vertebrate and invertebrate animals.
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133. • Desert biomes can be classified according to
several characteristics.
There are four major types of deserts:
•
•
•
•
Hot and dry Desert
Semiarid Desert
Coastal Desert
Cold Desert
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134. Hot and dry desert
• Hot and dry desert present in North American
countries.
• The seasons are generally warm throughout the
year and very hot in the summer.
• The winters usually bring little rainfall.
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137. • Desert surfaces receive a little more than twice
the solar radiation received by humid regions .
• The animals include small nocturnal (active at
night) carnivores.
• The dominant animals are burrowers and
kangaroo rats. There are also insects, arachnids,
reptiles and birds.
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140. Semiarid Desert
•
•
•
•
The major deserts of this type include the
Sagebrush of Utah,
Montana and Great Basin.
They also include the North America,
Newfoundland, Greenland, Russia, Europe and
northern Asia.
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144. Coastal desert
• These deserts occur in moderately cool to
warm areas is the coastal desert.
A good example is the Atacama of Chile.
• The soil is fine-textured with a moderate salt
content.
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151. Cold desert
• These deserts are characterized by cold winters
with snowfall and high overall rainfall
throughout the winter and occasionally over the
summer.
• They occur in the Antarctic, Greenland and the
Nearctic realm. They have short, moist, and
moderately warm summers with fairly long,
cold winters.
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152. The Atacama desert is, according to NASA, National Geographic and many other
publications, the driest desert in the world
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153. • The heaviest rainfall of the spring is usually in
April or May. In some areas, rainfall can be
heavy in autumn.
• The burrowing habit also applies to carnivores
like the badger, kit fox, and coyote.
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154. The 10 largest deserts
Rank
Desert
Area (km²)
Area (mi²)
1
Antarctic Desert
(Antarctica)
13,829,430
5,339,573
2
Arctic
13,700,000+
5,300,000+
3
Sahara (Africa)
9,100,000+
3,320,000+
4
Arabian Desert (Middle
2,330,000
East)
900,000
5
Gobi Desert (Asia)
500,000
6
Kalahari Desert (Africa) 900,000
360,000
7
Patagonian Desert
(South America)
670,000
260,000
8
Great Victoria Desert
(Australia)
647,000
250,000
9
Syrian Desert (Middle
East)
520,000
200,000
10
Great Basin Desert
(North America)
492,000
190,000
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155. Which is the biggest cold desert in
India
siachen glacier
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170. The Thar Desert, also known as the Great Indian Desert, is a
large, arid region in the northwestern part of the Indian
subcontinent.
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171. The region surrounding Aravalli hills near
Ranthambore, Rajasthan
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