Ch 9 ppt
•Download as PPT, PDF•
1 like•472 views
This document discusses biological productivity and energy flow in ecosystems. It begins by defining biomass as the total amount of organic matter in an ecosystem, which increases through plant and animal growth. It then explains that ecosystems are open to energy flow, with energy entering as food and leaving as heat or being stored. The laws of thermodynamics state that energy is conserved but always moves to less organized states, increasing entropy. Energy flows in one direction and organisms are generally inefficient at utilizing energy for growth.
Report
Share
Report
Share
Recommended
Lifescienceecosystem 140411110511-phpapp02
This document provides an overview of key concepts related to ecosystems, including definitions of ecosystem, population, community, habitat, trophic levels, food chains, food webs, biomass, energy pyramids, and decomposers. It also discusses how energy is lost at each trophic level as it is transferred between organisms, limiting the length and productivity of food chains. The learning outcomes indicate students should be able to define important terms, draw and label a food web, discuss food pyramids and energy transfer, and explain biomass and its role in ecosystems.
Food chains and food webs
The document discusses trophic levels and food chains in ecosystems. It explains that the sun's energy is captured by producers through photosynthesis and then transferred to consumers through eating. This creates trophic levels with producers at level 1, primary consumers at level 2, secondary consumers at level 3, and so on. Food chains show direct energy transfers between organisms but ecosystems actually contain complex food webs. Energy is lost at each transfer through inefficiencies in transformations between chemical and kinetic energy.
I:\7th grade\ecology\chapter1\ecology intro notes
Ecology is the study of the interactions between organisms and their environment. An ecologist studies ecology. Key concepts in ecology include biotic and abiotic factors, the 5 levels of ecological organization (organism, population, community, ecosystem, biosphere), producers, consumers, decomposers, food chains, food webs, energy pyramids, populations, communities, limiting factors, and carrying capacity.
Food and energy in the environment
This document discusses how organisms obtain energy and their roles in ecosystems. Producers, like plants, generate their own food through photosynthesis. Consumers, such as herbivores, carnivores and omnivores, obtain energy by eating producers or other consumers. Decomposers, including bacteria and fungi, break down dead organisms and cycle nutrients back into the environment. Food chains and webs represent the transfer of energy as organisms consume other organisms. Producers are the first level, while consumers and decomposers occupy higher levels, with less available energy at each step.
food and web chain
This document discusses feeding relationships and food webs in ecosystems. It defines key terms like producers, consumers, decomposers, herbivores, carnivores, omnivores, and describes different types of interactions like commensalism, mutualism, and parasitism. Examples of each are provided. Food chains and food webs are explained, showing the transfer of energy from trophic level to trophic level. Energy pyramids, biomass pyramids, and pyramids of numbers are introduced to illustrate how energy and biomass decrease at higher trophic levels due to energy losses between levels. Sample questions are included for students to answer.
5 energy flow in nature fall 2015
The document discusses several key topics related to energy flows on Earth:
- It describes how energy from the sun drives most energy flows on Earth through photosynthesis, winds, ocean currents, and other processes. Materials cycle but energy always flows and is lost.
- Key energy flows discussed include the water cycle, atmospheric circulation, ocean currents like the Gulf Stream, and energy and matter flows through ecosystems and food webs.
- The value of natural capital and ecosystem services are highlighted, with examples of how natural systems purify air/water and provide other valuable services at no cost.
- Overall the document provides a high-level overview of major global energy flows and how they interconnect critical Earth systems.
Ecology rev
This document summarizes key concepts in ecology, including defining abiotic and biotic factors, ecosystems, and levels of biological organization. It describes how biotic factors such as producers, consumers, and decomposers interact through food chains and webs within ecosystems and explains concepts like trophic levels, energy flow, and ecological relationships between species through competition, predation, and symbiosis.
Ecosystemenergyflowpart2 111005093440-phpapp01 (1)
The document discusses key concepts about energy flow in ecosystems including food chains, food webs, trophic levels, and energy pyramids. It defines producers as organisms that produce their own food (e.g. plants), consumers as organisms that consume other organisms, and decomposers as organisms that break down dead organic matter. The document provides examples of food chains and webs and explains how energy decreases at each trophic level and is lost as heat between levels in an energy pyramid.
Recommended
Lifescienceecosystem 140411110511-phpapp02
This document provides an overview of key concepts related to ecosystems, including definitions of ecosystem, population, community, habitat, trophic levels, food chains, food webs, biomass, energy pyramids, and decomposers. It also discusses how energy is lost at each trophic level as it is transferred between organisms, limiting the length and productivity of food chains. The learning outcomes indicate students should be able to define important terms, draw and label a food web, discuss food pyramids and energy transfer, and explain biomass and its role in ecosystems.
Food chains and food webs
The document discusses trophic levels and food chains in ecosystems. It explains that the sun's energy is captured by producers through photosynthesis and then transferred to consumers through eating. This creates trophic levels with producers at level 1, primary consumers at level 2, secondary consumers at level 3, and so on. Food chains show direct energy transfers between organisms but ecosystems actually contain complex food webs. Energy is lost at each transfer through inefficiencies in transformations between chemical and kinetic energy.
I:\7th grade\ecology\chapter1\ecology intro notes
Ecology is the study of the interactions between organisms and their environment. An ecologist studies ecology. Key concepts in ecology include biotic and abiotic factors, the 5 levels of ecological organization (organism, population, community, ecosystem, biosphere), producers, consumers, decomposers, food chains, food webs, energy pyramids, populations, communities, limiting factors, and carrying capacity.
Food and energy in the environment
This document discusses how organisms obtain energy and their roles in ecosystems. Producers, like plants, generate their own food through photosynthesis. Consumers, such as herbivores, carnivores and omnivores, obtain energy by eating producers or other consumers. Decomposers, including bacteria and fungi, break down dead organisms and cycle nutrients back into the environment. Food chains and webs represent the transfer of energy as organisms consume other organisms. Producers are the first level, while consumers and decomposers occupy higher levels, with less available energy at each step.
food and web chain
This document discusses feeding relationships and food webs in ecosystems. It defines key terms like producers, consumers, decomposers, herbivores, carnivores, omnivores, and describes different types of interactions like commensalism, mutualism, and parasitism. Examples of each are provided. Food chains and food webs are explained, showing the transfer of energy from trophic level to trophic level. Energy pyramids, biomass pyramids, and pyramids of numbers are introduced to illustrate how energy and biomass decrease at higher trophic levels due to energy losses between levels. Sample questions are included for students to answer.
5 energy flow in nature fall 2015
The document discusses several key topics related to energy flows on Earth:
- It describes how energy from the sun drives most energy flows on Earth through photosynthesis, winds, ocean currents, and other processes. Materials cycle but energy always flows and is lost.
- Key energy flows discussed include the water cycle, atmospheric circulation, ocean currents like the Gulf Stream, and energy and matter flows through ecosystems and food webs.
- The value of natural capital and ecosystem services are highlighted, with examples of how natural systems purify air/water and provide other valuable services at no cost.
- Overall the document provides a high-level overview of major global energy flows and how they interconnect critical Earth systems.
Ecology rev
This document summarizes key concepts in ecology, including defining abiotic and biotic factors, ecosystems, and levels of biological organization. It describes how biotic factors such as producers, consumers, and decomposers interact through food chains and webs within ecosystems and explains concepts like trophic levels, energy flow, and ecological relationships between species through competition, predation, and symbiosis.
Ecosystemenergyflowpart2 111005093440-phpapp01 (1)
The document discusses key concepts about energy flow in ecosystems including food chains, food webs, trophic levels, and energy pyramids. It defines producers as organisms that produce their own food (e.g. plants), consumers as organisms that consume other organisms, and decomposers as organisms that break down dead organic matter. The document provides examples of food chains and webs and explains how energy decreases at each trophic level and is lost as heat between levels in an energy pyramid.
Ecosystem energy flow (part 2)
The document discusses key concepts about energy flow within ecosystems, including food chains, food webs, and energy pyramids. It defines producers as organisms at the first trophic level that convert sunlight into chemical energy through photosynthesis. Consumers are organisms at higher trophic levels that get energy by eating other organisms, including herbivores, omnivores, and carnivores. Decomposers break down dead organic matter and cycle nutrients. Food chains show a single path of energy transfer, while food webs illustrate the many interconnected food chains in an ecosystem. Energy pyramids demonstrate that the amount of available energy decreases at each trophic level as heat is lost during energy transfers between organisms.
Ecology chpter 9 10
Ecology is the study of interactions between organisms and their environment. It examines these connections across different levels of organization, from organisms and populations up to ecosystems, biomes, and the biosphere. Ecosystems consist of biotic and abiotic factors interacting within a defined area. Energy and nutrients flow through ecosystems via food chains, food webs, and other pathways. Climate and other environmental factors help determine the different biomes found around the world such as deserts and forests.
Food chains and webs powerpoint
The document discusses food chains and food webs within an ecosystem. It defines key terms like producers, consumers, herbivores, carnivores, omnivores, and decomposers. It explains that producers like plants make their own food, while consumers eat other organisms. Decomposers break down dead plants and animals, recycling nutrients. A food chain diagrams a single path of energy transfer, while a food web shows interconnected chains. Energy is lost at each trophic level, as shown in an energy pyramid.
Food chains and food webs final
1) The document discusses food chains and food webs, including how energy flows between producers, consumers, and decomposers.
2) It defines herbivores, carnivores, omnivores and their roles within food chains. It also explains how humans can disrupt natural food chains through activities like deforestation, pesticide use, and overhunting.
3) The document is intended to teach students about ecological concepts like producers and consumers, and how human activities can negatively impact ecosystems.
Unit 3 lesson 1 food chains
This document defines key terms related to ecosystems, including producers, consumers, decomposers, food chains, and food webs. It provides examples of each trophic level and discusses how energy flows through ecosystems. Producers, like plants, capture energy from the sun that is then consumed by primary, secondary, and tertiary consumers. Decomposers, such as bacteria and fungi, break down dead organisms and waste. While nutrients cycle through the ecosystem, most energy is lost as heat at each trophic level, with only 10-15% transferred to the next level.
Food Chain and Webs
A food chain shows how energy passes from producers like plants through consumers like herbivores and carnivores to decomposers. Producers make their own food through photosynthesis. Consumers cannot make their own food and include herbivores that eat plants, carnivores that eat other animals, and omnivores that eat both. Decomposers break down dead organisms and return nutrients to the soil. A food web connects multiple overlapping food chains to more accurately depict feeding relationships in an ecosystem.
Food chain
This document provides information about food chains. It begins by defining a food chain as a sequence of organisms through which energy flows as each organism obtains energy from the one below it in the chain. Producers, such as plants, are at the bottom of the food chain as they can produce their own food. Herbivores, as primary consumers, eat the producers. Carnivores eat herbivores or other carnivores. Omnivores both eat plants and other animals. Decomposers, like fungi and bacteria, break down waste and dead organisms, recycling nutrients in the ecosystem. The document includes examples of food chains and defines the roles of producers, consumers, and decomposers. It also
final document
1. Biotic components are the living things in an ecosystem, including producers, consumers, and decomposers.
2. Producers like plants use photosynthesis to obtain energy from sunlight. Consumers eat producers or other consumers to obtain energy, and can be herbivores, carnivores, or omnivores. Decomposers obtain energy from dead producers and consumers.
3. Food chains show the feeding relationships between organisms, with energy passing from producers to primary, secondary, and tertiary consumers.
Unit 2 a ch 5 s2 the cycling of materials
This document summarizes several nutrient cycles that are essential for life. It describes the nitrogen cycle, in which nitrogen is fixed from the atmosphere by lightning and bacteria, taken up by plants, and recycled through organisms and the soil with the help of bacteria. It also outlines the carbon/oxygen cycle of photosynthesis and respiration, the water cycle of evaporation and precipitation, and the phosphorus cycle of weathering and plant uptake. It notes how human activities like fossil fuel use, deforestation, septic systems, and phosphorus pollution can disrupt these natural cycles.
5. matter and energy chpt 4 power point
This document summarizes key concepts about ecosystems from Chapter 4, including:
1. Ecosystems transfer energy from producers (plants, algae) to consumers (herbivores, carnivores, omnivores, scavengers) to decomposers (bacteria, fungi).
2. Food chains show the transfer of energy between trophic levels, while food webs illustrate the complex feeding relationships. Biological magnification occurs as pollutants accumulate in higher trophic levels.
3. Only about 10% of energy is transferred between trophic levels, limiting food chain length. Ecological pyramids illustrate this energy loss.
4. Chemical cycles like water, carbon, and
Food Web and Food Pyramid, Prepared by: Edsyl Berongoy Penas, LPT
Food Web and Food Pyramid, Prepared by: Edsyl Berongoy Penas, LPTROMAN C. VILLALON MEMORIAL COLLEGES FOUNDATION INC.
The document discusses food chains, food webs, and food pyramids. It explains that in a food chain, energy passes from producers to consumers as herbivores eat plants, carnivores eat herbivores, and omnivores eat plants and other animals. A food web shows the interconnected food chains in an ecosystem. A food pyramid depicts the transfer of biomass and energy between trophic levels, with higher levels containing less biomass since most energy is lost as it moves up the chain.Ecology
This document provides an overview of key concepts in ecology. It defines ecology as the study of interactions between living organisms and their environment. The environment contains abiotic factors like climate and biotic factors like other living things. Organisms are organized into a hierarchy of levels including species, populations, communities, and ecosystems. Producers, consumers, and decomposers have different roles in ecosystems. Energy flows through trophic levels from producers to consumers to decomposers, with only about 10% transferred between levels. Food chains and webs show feeding relationships. Relationships like predation, competition, and symbiosis influence organisms.
Unit 3 food chain & food web
This document discusses food chains and food webs. It will teach how to classify animals based on what they eat, how to construct food chains and food webs for different habitats, and how to identify producers and consumers. It defines producers as plants that get energy from the sun, herbivores as animals that eat plants, carnivores as animals that eat other animals, and omnivores as animals that eat both plants and other animals. An example food chain of cow eating grass and then being eaten by a tiger is given. A food web connects multiple overlapping food chains in an ecosystem like an oil palm plantation.
Biology ecology
The document discusses different levels of organization in ecology, from cells to the biosphere. It explains key ecological concepts like producers, consumers, herbivores, carnivores, omnivores, decomposers, food chains, food webs, and energy flow through ecosystems. Primary productivity is defined as the rate at which producers create new organic material. Major biogeochemical cycles like the water, carbon, and nitrogen cycles are also summarized.
Habitats and foodchains
An ecosystem refers to all the plants and animals that live together in an environment and interact. Different ecosystems can exist close together and some animals belong to multiple ecosystems. All living things are adapted to their environment and habitats in ways that help them survive, such as how seals are adapted to aquatic life. Food chains show what organisms eat other organisms or plants, and start with producers like plants. When one part of a food chain is disrupted, it can negatively impact other parts of the ecosystem. Human activities like habitat destruction and pollution are common reasons why some animal populations become endangered or extinct.
09 bio 06
An ecological niche describes the role of a species within its ecosystem, including what it eats, what eats it, how it behaves, and all the factors required for its survival. For example, the ecological niche of black bears includes living in forests, feeding on nuts, berries, insects and small animals, being fed on by blood-feeding insects and parasites, and helping disperse berry seeds through their digestive systems. Energy from the sun is absorbed by producers through photosynthesis and converted into chemical energy stored as sugar, which is then transferred to consumers through cellular respiration as the consumers eat the producers or other organisms.
Food chain group 3-9 f
A food chain shows how organisms obtain energy and nutrients by consuming other organisms. Food chains begin with autotrophs, like plants, that produce their own food. Herbivores then eat the plants, and carnivores eat the herbivores or other carnivores. This continues with increasing trophic levels until reaching top predators with no natural predators. At each level some energy is lost, with decreasing amounts of energy being passed to higher levels.
Feeding
The document discusses feeding relationships and food chains. It explains that all food chains start with energy from the sun which is transferred to plants through photosynthesis. Plants are called producers. Primary consumers, like rabbits and aphids, eat the plants and pass the energy to secondary consumers like foxes and ladybirds that prey on the primary consumers. A food web shows the complex interconnected feeding relationships between different species in an ecosystem. When a species is removed, it impacts the populations of the other connected species in the food web.
Food chain and food web
Food chain and Food Web
Food chain and food web in ecosystem
Food chain
Types of food chains
1. Grazing food chain
2. Detritus food chain
Food web
Significance of food chain and food web
Ecosystemenergyflowpart2 111005093440-phpapp01 (2)
The document discusses key concepts about energy flow in ecosystems including food chains, food webs, trophic levels, and energy pyramids. It defines producers as organisms that produce their own food (e.g. plants), consumers as organisms that consume other organisms, and decomposers as organisms that break down dead organic matter. The document provides examples of food chains and webs and explains how energy decreases at each trophic level and is lost as heat between levels in an energy pyramid.
Chapter 3 biosphere and ecology
The document provides an overview of ecology, including what ecology is, different levels of ecological organization, and ecological methods. It discusses key topics in ecology such as energy flow, including producers, consumers, trophic levels, and ecological pyramids. It also summarizes important biogeochemical cycles in ecology, specifically the water, carbon, and nutrient cycles. The document is from an honors biology textbook and covers foundational concepts in the field of ecology.
AP Biology Animal Form and Function Ch. 33
The document describes the basics of animal form and function. It discusses how physical laws and the environment constrain animal size and shape. It also explains how organisms maintain homeostasis through various mechanisms at the cellular, tissue, organ, and organ system levels. Animals obtain energy from food which is processed through ingestion, digestion, absorption, and elimination in the digestive system. Homeostatic mechanisms regulate nutrients and energy usage.
More Related Content
What's hot
Ecosystem energy flow (part 2)
The document discusses key concepts about energy flow within ecosystems, including food chains, food webs, and energy pyramids. It defines producers as organisms at the first trophic level that convert sunlight into chemical energy through photosynthesis. Consumers are organisms at higher trophic levels that get energy by eating other organisms, including herbivores, omnivores, and carnivores. Decomposers break down dead organic matter and cycle nutrients. Food chains show a single path of energy transfer, while food webs illustrate the many interconnected food chains in an ecosystem. Energy pyramids demonstrate that the amount of available energy decreases at each trophic level as heat is lost during energy transfers between organisms.
Ecology chpter 9 10
Ecology is the study of interactions between organisms and their environment. It examines these connections across different levels of organization, from organisms and populations up to ecosystems, biomes, and the biosphere. Ecosystems consist of biotic and abiotic factors interacting within a defined area. Energy and nutrients flow through ecosystems via food chains, food webs, and other pathways. Climate and other environmental factors help determine the different biomes found around the world such as deserts and forests.
Food chains and webs powerpoint
The document discusses food chains and food webs within an ecosystem. It defines key terms like producers, consumers, herbivores, carnivores, omnivores, and decomposers. It explains that producers like plants make their own food, while consumers eat other organisms. Decomposers break down dead plants and animals, recycling nutrients. A food chain diagrams a single path of energy transfer, while a food web shows interconnected chains. Energy is lost at each trophic level, as shown in an energy pyramid.
Food chains and food webs final
1) The document discusses food chains and food webs, including how energy flows between producers, consumers, and decomposers.
2) It defines herbivores, carnivores, omnivores and their roles within food chains. It also explains how humans can disrupt natural food chains through activities like deforestation, pesticide use, and overhunting.
3) The document is intended to teach students about ecological concepts like producers and consumers, and how human activities can negatively impact ecosystems.
Unit 3 lesson 1 food chains
This document defines key terms related to ecosystems, including producers, consumers, decomposers, food chains, and food webs. It provides examples of each trophic level and discusses how energy flows through ecosystems. Producers, like plants, capture energy from the sun that is then consumed by primary, secondary, and tertiary consumers. Decomposers, such as bacteria and fungi, break down dead organisms and waste. While nutrients cycle through the ecosystem, most energy is lost as heat at each trophic level, with only 10-15% transferred to the next level.
Food Chain and Webs
A food chain shows how energy passes from producers like plants through consumers like herbivores and carnivores to decomposers. Producers make their own food through photosynthesis. Consumers cannot make their own food and include herbivores that eat plants, carnivores that eat other animals, and omnivores that eat both. Decomposers break down dead organisms and return nutrients to the soil. A food web connects multiple overlapping food chains to more accurately depict feeding relationships in an ecosystem.
Food chain
This document provides information about food chains. It begins by defining a food chain as a sequence of organisms through which energy flows as each organism obtains energy from the one below it in the chain. Producers, such as plants, are at the bottom of the food chain as they can produce their own food. Herbivores, as primary consumers, eat the producers. Carnivores eat herbivores or other carnivores. Omnivores both eat plants and other animals. Decomposers, like fungi and bacteria, break down waste and dead organisms, recycling nutrients in the ecosystem. The document includes examples of food chains and defines the roles of producers, consumers, and decomposers. It also
final document
1. Biotic components are the living things in an ecosystem, including producers, consumers, and decomposers.
2. Producers like plants use photosynthesis to obtain energy from sunlight. Consumers eat producers or other consumers to obtain energy, and can be herbivores, carnivores, or omnivores. Decomposers obtain energy from dead producers and consumers.
3. Food chains show the feeding relationships between organisms, with energy passing from producers to primary, secondary, and tertiary consumers.
Unit 2 a ch 5 s2 the cycling of materials
This document summarizes several nutrient cycles that are essential for life. It describes the nitrogen cycle, in which nitrogen is fixed from the atmosphere by lightning and bacteria, taken up by plants, and recycled through organisms and the soil with the help of bacteria. It also outlines the carbon/oxygen cycle of photosynthesis and respiration, the water cycle of evaporation and precipitation, and the phosphorus cycle of weathering and plant uptake. It notes how human activities like fossil fuel use, deforestation, septic systems, and phosphorus pollution can disrupt these natural cycles.
5. matter and energy chpt 4 power point
This document summarizes key concepts about ecosystems from Chapter 4, including:
1. Ecosystems transfer energy from producers (plants, algae) to consumers (herbivores, carnivores, omnivores, scavengers) to decomposers (bacteria, fungi).
2. Food chains show the transfer of energy between trophic levels, while food webs illustrate the complex feeding relationships. Biological magnification occurs as pollutants accumulate in higher trophic levels.
3. Only about 10% of energy is transferred between trophic levels, limiting food chain length. Ecological pyramids illustrate this energy loss.
4. Chemical cycles like water, carbon, and
Food Web and Food Pyramid, Prepared by: Edsyl Berongoy Penas, LPT
Food Web and Food Pyramid, Prepared by: Edsyl Berongoy Penas, LPTROMAN C. VILLALON MEMORIAL COLLEGES FOUNDATION INC.
The document discusses food chains, food webs, and food pyramids. It explains that in a food chain, energy passes from producers to consumers as herbivores eat plants, carnivores eat herbivores, and omnivores eat plants and other animals. A food web shows the interconnected food chains in an ecosystem. A food pyramid depicts the transfer of biomass and energy between trophic levels, with higher levels containing less biomass since most energy is lost as it moves up the chain.Ecology
This document provides an overview of key concepts in ecology. It defines ecology as the study of interactions between living organisms and their environment. The environment contains abiotic factors like climate and biotic factors like other living things. Organisms are organized into a hierarchy of levels including species, populations, communities, and ecosystems. Producers, consumers, and decomposers have different roles in ecosystems. Energy flows through trophic levels from producers to consumers to decomposers, with only about 10% transferred between levels. Food chains and webs show feeding relationships. Relationships like predation, competition, and symbiosis influence organisms.
Unit 3 food chain & food web
This document discusses food chains and food webs. It will teach how to classify animals based on what they eat, how to construct food chains and food webs for different habitats, and how to identify producers and consumers. It defines producers as plants that get energy from the sun, herbivores as animals that eat plants, carnivores as animals that eat other animals, and omnivores as animals that eat both plants and other animals. An example food chain of cow eating grass and then being eaten by a tiger is given. A food web connects multiple overlapping food chains in an ecosystem like an oil palm plantation.
Biology ecology
The document discusses different levels of organization in ecology, from cells to the biosphere. It explains key ecological concepts like producers, consumers, herbivores, carnivores, omnivores, decomposers, food chains, food webs, and energy flow through ecosystems. Primary productivity is defined as the rate at which producers create new organic material. Major biogeochemical cycles like the water, carbon, and nitrogen cycles are also summarized.
Habitats and foodchains
An ecosystem refers to all the plants and animals that live together in an environment and interact. Different ecosystems can exist close together and some animals belong to multiple ecosystems. All living things are adapted to their environment and habitats in ways that help them survive, such as how seals are adapted to aquatic life. Food chains show what organisms eat other organisms or plants, and start with producers like plants. When one part of a food chain is disrupted, it can negatively impact other parts of the ecosystem. Human activities like habitat destruction and pollution are common reasons why some animal populations become endangered or extinct.
09 bio 06
An ecological niche describes the role of a species within its ecosystem, including what it eats, what eats it, how it behaves, and all the factors required for its survival. For example, the ecological niche of black bears includes living in forests, feeding on nuts, berries, insects and small animals, being fed on by blood-feeding insects and parasites, and helping disperse berry seeds through their digestive systems. Energy from the sun is absorbed by producers through photosynthesis and converted into chemical energy stored as sugar, which is then transferred to consumers through cellular respiration as the consumers eat the producers or other organisms.
Food chain group 3-9 f
A food chain shows how organisms obtain energy and nutrients by consuming other organisms. Food chains begin with autotrophs, like plants, that produce their own food. Herbivores then eat the plants, and carnivores eat the herbivores or other carnivores. This continues with increasing trophic levels until reaching top predators with no natural predators. At each level some energy is lost, with decreasing amounts of energy being passed to higher levels.
Feeding
The document discusses feeding relationships and food chains. It explains that all food chains start with energy from the sun which is transferred to plants through photosynthesis. Plants are called producers. Primary consumers, like rabbits and aphids, eat the plants and pass the energy to secondary consumers like foxes and ladybirds that prey on the primary consumers. A food web shows the complex interconnected feeding relationships between different species in an ecosystem. When a species is removed, it impacts the populations of the other connected species in the food web.
Food chain and food web
Food chain and Food Web
Food chain and food web in ecosystem
Food chain
Types of food chains
1. Grazing food chain
2. Detritus food chain
Food web
Significance of food chain and food web
What's hot (19)
Food Web and Food Pyramid, Prepared by: Edsyl Berongoy Penas, LPT
Food Web and Food Pyramid, Prepared by: Edsyl Berongoy Penas, LPT
Similar to Ch 9 ppt
Ecosystemenergyflowpart2 111005093440-phpapp01 (2)
The document discusses key concepts about energy flow in ecosystems including food chains, food webs, trophic levels, and energy pyramids. It defines producers as organisms that produce their own food (e.g. plants), consumers as organisms that consume other organisms, and decomposers as organisms that break down dead organic matter. The document provides examples of food chains and webs and explains how energy decreases at each trophic level and is lost as heat between levels in an energy pyramid.
Chapter 3 biosphere and ecology
The document provides an overview of ecology, including what ecology is, different levels of ecological organization, and ecological methods. It discusses key topics in ecology such as energy flow, including producers, consumers, trophic levels, and ecological pyramids. It also summarizes important biogeochemical cycles in ecology, specifically the water, carbon, and nutrient cycles. The document is from an honors biology textbook and covers foundational concepts in the field of ecology.
AP Biology Animal Form and Function Ch. 33
The document describes the basics of animal form and function. It discusses how physical laws and the environment constrain animal size and shape. It also explains how organisms maintain homeostasis through various mechanisms at the cellular, tissue, organ, and organ system levels. Animals obtain energy from food which is processed through ingestion, digestion, absorption, and elimination in the digestive system. Homeostatic mechanisms regulate nutrients and energy usage.
04 energy flow in ecosystems
1) Energy from the sun is absorbed by producers like plants through photosynthesis and converted into chemical energy in sugars. 2) Consumers obtain this energy by eating producers or other consumers. 3) Decomposers break down dead organisms, releasing nutrients back into the environment and completing the energy cycle.
Animal Thermoregulation and Nutrition Ch. 33
The document provides an overview of animal form and function, including:
1) It describes the different levels of organization in complex animals from cells to tissues to organs and organ systems.
2) It explains how animals use the chemical energy from food to maintain homeostasis through metabolic processes like endothermy and ectothermy.
3) Key concepts around thermoregulation, homeostasis, and the mechanisms that animals use to exchange heat and regulate internal temperatures are summarized.
Chapter basic animal form and other improtant
This document provides an overview of animal form and function. It discusses several key topics:
1) It describes the different levels of organization in complex animals, from cells to tissues to organs and organ systems.
2) It explains how animals use the chemical energy from food to maintain homeostasis, grow, and reproduce through various metabolic strategies like endothermy and ectothermy.
3) It discusses the mechanisms animals use to regulate internal conditions like temperature, including insulation, vasodilation/constriction, sweating/panting, and altering metabolic heat production.
Ecosystems and energy_flow
I apologize, upon reviewing the document again I do not see any questions asked that I can provide a summary for. The document appears to only contain information about ecosystems and does not include any explicit questions.
Energy flow
This document discusses ecosystems and energy flow between organisms. It begins by defining producers (autotrophs) which get energy from the sun through photosynthesis. Consumers (heterotrophs) depend on producers for nutrients and include herbivores, carnivores, scavengers, and decomposers. Energy and matter are transferred between trophic levels in food chains and food webs. Ecological pyramids illustrate how biomass, numbers, and energy decrease at higher trophic levels due to energy lost as heat. Cycles of water, carbon, nitrogen, and phosphorus allow these essential elements to be reused in ecosystems.
Energy Flow in Environment : Ecological Energetics
What is Energy:
The ability or capacity to do work,
Radiant, Chemical, thermal, mechanical, nuclear, electrical.
What is Energy Flow:
The existence of flora and fauna in ecosystem depends upon the cycle of minerals and flow of energy. Energy is needed for all the biotic activities. The only source of this energy is the sun. The entrance, transformation and diffusion of energy in ecosystem are governed by laws of thermodynamics.
Chapt03 lecture
This document provides an outline of key topics in ecology, including elements of life, organic compounds, cells, energy laws, photosynthesis, respiration, ecosystems, food chains, ecological pyramids, and material cycles. It defines important terms and concepts and describes the flow of matter and energy through biological systems from the cellular to the ecosystem level.
APES Ch. 3, part 1
This document provides an overview of key concepts in ecology, including the levels of biological organization, types of cells, trophic levels, energy flow through ecosystems, and nutrient cycling. It defines important terms like population, community, ecosystem, biosphere, producers, consumers, decomposers, food chains, and food webs. It also explains how energy is lost at each trophic level and illustrates this through energy and pyramid diagrams.
Body design
This chapter discusses how physical laws and the environment constrain animal size and shape. It introduces key concepts around form and function relationships in animals. These include how different tissues (epithelial, connective, muscle, and nervous) relate to an animal's functions. The chapter also covers bioenergetics and how animals obtain and use energy. A major topic is homeostasis, how animals regulate internal conditions, comparing endothermic and ectothermic strategies. Thermoregulation mechanisms like insulation, circulation and behavior are examined.
Lovely
Ecosystems maintain themselves through the cycling of energy and nutrients obtained from external sources like the sun. Primary producers like plants use photosynthesis to produce organic materials from solar energy, forming the base of the trophic structure. While primary producers absorb most energy from the sun, decomposers process large amounts of organic material and release more energy, making them more important than producers in terms of energy flow through the ecosystem.
Ecology review 1
The document discusses key concepts in ecology including the principles of energy conservation and transfer through ecosystems. It explains that the sun is the primary source of energy which is captured through photosynthesis and passed between trophic levels in a food web, with energy being lost at each transfer. Due to this energy loss, most food webs only support 4-5 trophic levels before little energy remains.
5.1_5.2_5.3 Ecology PPT
1. Ecology is the study of living organisms in their natural environment and how they interact with each other and their nonliving environment.
2. An ecosystem consists of all the interacting living organisms (biotic factors) in a given area, as well as their nonliving (abiotic) environment. Key abiotic factors include temperature, water, soil and sunlight which influence which organisms can survive there.
3. Energy enters ecosystems through photosynthesis by autotrophs like plants, and is transferred between organisms through food webs as heterotrophs like animals consume other organisms to obtain energy. Nutrients are recycled through processes like the carbon and nitrogen cycles.
1. animal form and function. animal form and function. animal form and function
This document discusses animal form and function at different levels of biological organization. It covers topics like anatomy, physiology, bioenergetics, homeostasis, thermoregulation, and adaptations like torpor and acclimatization. The key points are:
1) Animal form is shaped by natural selection to fit its function and environment over many generations. Its structure at different levels from cells to organ systems allows it to interact with its environment.
2) Bioenergetics examines how animals obtain and use energy from food. Having the right surface area to volume ratio and internal structures allows efficient exchange of materials in multicellular organisms.
3) Homeostasis and thermoregulation allow animals to maintain stable internal conditions
Cape biology unit 2 -_matter_and_energy_flow__recycling_in_the_environment
The document discusses energy and matter, food chains, and material and nutrient cycles in ecosystems. It defines key terms like producers, consumers, trophic levels, and decomposers. It explains that energy enters ecosystems from the sun and is either passed up food chains, stored in detritus, or lost as heat. Matter cycles between biotic and abiotic parts of ecosystems, with producers taking in simple molecules like CO2 and releasing complex organic molecules, and decomposers breaking these down and releasing simple molecules. Microbes play major roles in nutrient cycles like carbon and nitrogen.
Ecology
IB DP Biology Unit 1 (Diversity of Life) Materials (PPT)
Chapter 4 Ecology
4.1 Species and Ecosystems
4.2 Energy Flow
Ecology energy flow pathway in an ecosystem
The document discusses energy flow through ecosystems. It begins by explaining that the sun is the primary energy source for ecosystems and that plants convert the sun's radiant energy into chemical energy through photosynthesis. This chemical energy then passes through food chains, with approximately 10% of the energy being transferred to each higher trophic level. Various models and laws are described that illustrate principles like the one-way flow of energy and the inefficiencies of transfers between trophic levels. Overall, the summary emphasizes that sunlight powers ecosystems by being converted to chemical energy by plants and then traveling through food webs in a step-wise, 10%-losing manner.
Similar to Ch 9 ppt (20)
Ecosystemenergyflowpart2 111005093440-phpapp01 (2)
Ecosystemenergyflowpart2 111005093440-phpapp01 (2)
Energy Flow in Environment : Ecological Energetics
Energy Flow in Environment : Ecological Energetics
AP Biology Unit 8 Ecology Topic Two Energy Flow Through Systems
AP Biology Unit 8 Ecology Topic Two Energy Flow Through Systems
1. animal form and function. animal form and function. animal form and function
1. animal form and function. animal form and function. animal form and function
Cape biology unit 2 -_matter_and_energy_flow__recycling_in_the_environment
Cape biology unit 2 -_matter_and_energy_flow__recycling_in_the_environment
More from Santiago High
Extinction ppt student template
The document discusses natural extinction versus accelerated or human-caused extinction. It notes that 99.999% of all species that have ever lived are now extinct, with natural extinction occurring through environmental disturbances, while accelerated extinction is caused by human activities like hunting, agriculture, habitat destruction, pollution, and international trade. It states that the current rate of extinction is 50,000+ species every 5-10 years, and if nothing is done 1/3 of all living things may be lost within 30 years. The document lists characteristics of extinction-prone species and questions if the reader with those traits is doomed.
Key concepts chapters 13 and 14
1. The document provides an overview of key concepts from Chapters 13 and 14, including direct and indirect causes of deforestation, methods of harvesting trees, causes of extinction, logistic growth curves and their assumptions, maximum sustainable yield (MSY) versus optimum sustainable population (OSP), the International Whaling Commission (IWC) and its goals, characteristics of extinction-prone species, and three case studies on fisheries, fire management, and paper production.
Ch 13 and 14 student template ppt 2010
This document discusses forests, deforestation, wildlife management, fisheries, and endangered species. It notes that forests are economically and ecologically important but deforestation is a major environmental concern. Deforestation is driven by wood usage, which is predicted to double by 2050, and paper production, which uses 30% of the world's paper despite only 5% of the population. Unsustainable logging and fishing practices have depleted fish and whale populations. International agreements have established protections and regulations for fisheries, whaling, and endangered species to curb overexploitation and prevent extinctions.
Ch 12 ppt 2010
This document discusses sustainable agriculture and its environmental impacts. It covers topics like soil structure and erosion, sustainable farming practices like crop rotation and cover crops, integrated pest management, causes of desertification, and issues with factory farming. The key goals of sustainable farming are to conserve soil and water resources and minimize pollution. Practices that reduce soil erosion include contour plowing, terracing, shelterbelts, and low- or no-till plowing. Cover crops and crop rotation help maintain soil nutrients and prevent excess nitrogen runoff. Integrated pest management uses a combination of biological, cultural and targeted chemical controls. Desertification is worsened by poor farming, overgrazing, deforestation and climate change.
Ch 9 ppt eating lower of the food chain
The document discusses the environmental impacts of eating meat and dairy products, particularly beef and dairy cows. It notes that animal agriculture uses significant amounts of agricultural land, water, and fossil fuels to produce meat and dairy. Specifically, it states that cows alone use 50% of agricultural land but only provide 18% of calories. It also discusses the water, pollution, deforestation, and greenhouse gas impacts of industrial animal agriculture. The document advocates for eating lower on the food chain to reduce these environmental impacts.
Ch 10 ppt
Ecological restoration involves facilitating natural succession to help an ecosystem recover from human disturbance. There are two types of succession - primary succession establishes ecosystems in areas with no prior ecosystem, like retreating glaciers, while secondary succession reestablishes ecosystems following disturbances like fires. Restoration is difficult for lands that have lost organic matter or been subjected to overuse, and there does not appear to be a permanent climax state, as gradual loss of nutrients occurs even in mature ecosystems.
Island biogeography activity procedure
This document provides student instructions for an activity exploring the theory of island biogeography. Students will simulate habitat fragmentation by analyzing how bean "migrants" spread from a main ecosystem to four island habitats of varying sizes and distances. They will conduct five trials, recording the number of beans reaching each island and calculating averages and percentages. The goal is to observe how island characteristics like size and distance affect biodiversity, as measured by the number of migrant beans reaching different islands.
Ch 8 Island biogeography lab
1) This document contains an activity guiding students through a simulation of island biogeography. It asks students to hypothesize which type of island (large and close, large but far, small but close, small and far) will receive the most immigrants.
2) Students are instructed to record immigration data to each island type over 5 years and calculate averages to determine which island received the highest percentage of total immigrants.
3) The document asks students to analyze whether their original hypothesis was correct based on the results and explain the outcomes of the simulation.
Ch 6 - 8 key concepts
This document provides an outline of key concepts and material to include in a study guide for chapters 6-8 of an environmental science textbook. The summary should include:
1. Ecological topics such as food webs, trophic levels, keystone species, and the basic processes in ecosystems.
2. Factors that increase and decrease biodiversity, reasons to preserve biodiversity, and the different types of biological diversity.
3. Evolutionary concepts including natural selection, mutation, adaptation, and speciation.
4. Ecological interactions like niches, competition, and symbiosis and being able to analyze examples.
5. Comparing reproduction strategies like r-selected and K-selected
Ch 7 laws ppt
The Endangered Species Act (ESA) was enacted in 1973 as the most far-reaching law for endangered species preservation passed by any nation. It protects over 1000 animals and provides penalties for harming endangered species or their habitats. The ESA works by listing species, designating critical habitats, developing recovery plans, and reviewing federal agency actions. The Lacey Act, originally passed in 1900, was one of the earliest US laws aimed at wildlife protection and was expanded in 1981 and 1988 to prohibit illegal wildlife trade internationally and domestically. CITES is an international agreement between governments to ensure wildlife trade does not threaten species' survival. It lists species in three appendices based on protection level.
Ch 7 8 ppt 2010 student notes
This document discusses several key concepts related to biological diversity and biogeography:
1. It defines biological evolution as changes in inherited traits over generations and outlines some processes that lead to evolution like mutations, natural selection, genetic drift, and geographic isolation of populations.
2. It discusses factors that influence biodiversity like habitat diversity, species diversity, and environmental conditions. Greater biodiversity is seen in areas with more physically diverse habitats, moderate disturbance, and small environmental variation.
3. It outlines biogeography patterns seen on different continents and islands, explaining how continental drift, isolation, and adaptation to new environments has led to divergent evolution and speciation over time.
Rubric for scrAPESbook 2010 5 articles
This document contains 3 rubrics for evaluating a scrAPESbook project. Each rubric awards up to 65 total points. For 5 articles, students can earn 10 points for each perfect summary and opinion paragraph, with fewer points awarded for incomplete work. Students can also earn up to 5 points for a table of contents and 10 points for the overall quality of work presentation.
Ch 5 key concepts
The document outlines key concepts about biogeochemical cycles for an APES chapter. Students should understand: 1) the differences between macro and micronutrients and examples of each, 2) the six main macronutrients and how limitations can impact growth, 3) the differences in cycling speed between elements with and without gaseous phases, 4) the four groups of cycles that make up the larger geologic cycle, and 5) human impacts that can disrupt the nitrogen, carbon, and water cycles.
Ch 6 ppt 2010 lecture
This document discusses ecosystems and ecological communities through a case study on acorns and their connections. It emphasizes that living things are affected by and affect non-living things through complex relationships. It stresses the importance of understanding ecosystems, including their structure, processes, changes over time, energy flow, complexity, interconnectedness, and keystone species. Students are assigned to read three case studies and answer questions about bison, prairie dogs, wolves, and salmon to further examine these concepts.
Ch 6 ppt 2010 lecture
This document discusses ecosystems and ecological communities through a case study on acorns and their connections. It emphasizes that living things are affected by and affect non-living things through complex relationships. It stresses the importance of understanding ecosystems, including their structure, processes, changes over time, energy flow, complexity, interconnectedness, and keystone species. It assigns reading three case studies on buffalo, prairie dogs, Yellowstone wolves, and salmon to answer topic questions.
Ch 5 ppt
This document discusses biogeochemical cycles, specifically the carbon, nitrogen, and phosphorus cycles. It notes that the carbon cycle involves both gaseous (CO2, CH4) and non-gaseous forms. The nitrogen cycle moves between the atmosphere as N2 gas, into the soil through nitrogen fixation by bacteria, into plants, then back through decay. Phosphorus differs in that it has no gaseous stage and is stored in rocks and soil organic matter, becoming available to plants through microbial conversion to phosphates.
Ch 4 Key Concepts
This document provides an overview of key concepts to understand for a chapter on human populations, including how to interpret age structure and demographic transition diagrams, calculate demographic rates, compare causes of mortality in developed and developing nations, identify effective ways to slow population growth, understand how technology impacts growth, recognize Thomas Malthus' predictions, compare exponential and logistic growth models, and examine population control policies of countries like China and India.
Ch 4 ppt
The document discusses human population growth and its environmental impacts. It uses Bangladesh as a case study. Some key points:
- Population growth has "exploded" in modern times due to factors like agriculture and industrialization. The world's population increases by over 1 million people every 4 days.
- Developing countries will play a bigger role in future population growth due to higher birth rates compared to developed countries.
- Population growth rates are slowing in developed countries as they undergo demographic transitions towards lower birth rates with improved living standards and education.
FRQ Guidelines
This document provides tips for maximizing your score on free response questions for the AP exam. It recommends pacing yourself to spend about 22 minutes per question, organizing your thoughts before writing, writing clearly, underlining key points, including complete explanations, writing stronger examples first, staying on topic, using paragraph style writing rather than bullets, demonstrating a deep understanding of the prompt, supporting statements with evidence, and showing all work for math questions. It also notes the types of questions that will be on the AP exam.
Ecological Footprint Lab
The ecological footprint is a measurement tool used to calculate human consumption of ecological resources and waste assimilation. It measures the sustainability of lifestyles by calculating the amount of productive land required to meet consumption needs and absorb waste. Taking an online quiz, it was found that [YOUR NAME]'s lifestyle requires the annual resources of [X] number of planets and occupies [Y] acres. Various categories of daily activities and their environmental impacts were identified, along with potential reductions that could decrease the footprint.
More from Santiago High (20)
Recently uploaded
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
Bed Making ( Introduction, Purpose, Types, Articles, Scientific principles, N...
Topic : Bed making
Subject : Nursing Foundation
Temple of Asclepius in Thrace. Excavation results
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).
How to Setup Warehouse & Location in Odoo 17 Inventory
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.
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
Physical pharmaceutics notes for B.pharm students
How to deliver Powerpoint Presentations.pptx
"How to make and deliver dynamic presentations by making it more interactive to captivate your audience attention"
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...Nguyen Thanh Tu Collection
https://app.box.com/s/qhtvq32h4ybf9t49ku85x0n3xl4jhr15clinical examination of hip joint (1).pdf
described clinical examination all orthopeadic conditions .
Wound healing PPT
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.
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Aberdeen
Recently uploaded (20)
B. Ed Syllabus for babasaheb ambedkar education university.pdf
B. Ed Syllabus for babasaheb ambedkar education university.pdf
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
Bed Making ( Introduction, Purpose, Types, Articles, Scientific principles, N...
Bed Making ( Introduction, Purpose, Types, Articles, Scientific principles, N...
IGCSE Biology Chapter 14- Reproduction in Plants.pdf
IGCSE Biology Chapter 14- Reproduction in Plants.pdf
How to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 Inventory
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
Ch 9 ppt
- 1. Chapter 9 Biological Productivity and Energy Flow Case Study: Can Enough Food be Produced for Africa??? How much can we grow??? What will be our Carrying Capacity?????
- 2. The total amt of organic matter in an ecosystem = It increases though growth Plants, animals and dead are all biomass
- 3. Biomass is measured in It increases through growth. This is
- 4. Chemoautotrophs Bacteria that use inorganic compounds (like sulfur) to make their own food and tissues The white-ish area is a bacterial mat feeding on methane from beneath the ocean floor. Hydrothermal vents
- 5. Energy flow Ecosystems are all open to energy flow Energy in food chain heat released What is not used is lost (as heat), or stored!!!!
- 6. 1. kinetic- 2. potential- energy can move back and forth between the two Entropy-is the measure of disorder, wasted energy - becomes more random, can be sound or light but is mostly heat, everything always moves towards entropy
- 7. The laws of thermodynamics 1st Law – conservation of energy
- 8. 2nd Law- entropy increases -energy moves to a less organized form (living cells are holding off the forces of entropy by channeling energy).
- 9. Energy flow is one way!
- 10. Energy efficiency How efficient are orgs at using energy? Not very! Rule of thumb is:
- 12. Biomass Pyramid