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This document discusses four topics related to ecology: food chains, food webs, photosynthesis, and ecosystems. It provides examples of each, including a food chain showing the sun, a plant, caterpillar, bunny, and hawk and a food web showing interconnected food chains. Photosynthesis is defined as the process by which plants use sunlight to synthesize food from carbon dioxide and water. An ecosystem is defined as a community of living and non-living things that function together, providing the example of a squirrel in a tree or dog on a bed.
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This document discusses organisms, species, and some examples of microorganisms that can be found in an ecosystem. It provides the following information:
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This document discusses food chains and food webs. It defines key terms like producers, consumers, decomposers, herbivores, carnivores and omnivores. Producers like plants and algae are at the bottom of food chains, using photosynthesis to produce energy from the sun. Consumers eat other organisms to obtain energy and nutrients, and decomposers break down dead organisms, recycling nutrients. Food chains interconnect to form complex food webs in ecosystems. Energy is lost at each trophic level, as shown in energy pyramids, with fewer organisms at higher levels requiring more resources from below. Maintaining healthy food chains is important for sustaining all life.
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This document provides information about ecosystems and biodiversity. It defines ecology as the study of organism interactions with each other and their environment. An ecosystem is defined as the combination of biotic and abiotic components that interact. Key components of ecosystems discussed include producers, primary consumers, secondary consumers, tertiary consumers, food chains, food webs, and energy flow. Ecosystems are classified as terrestrial or aquatic. Major terrestrial ecosystems highlighted are forests, grasslands, and deserts. Ecological pyramids including numbers, biomass, and energy are described.
Ch.4.less.2.how does energy flow between organisms in an ecosystem
This document discusses how energy flows between organisms in an ecosystem. It explains that producers like plants obtain energy through photosynthesis and are eaten by primary consumers like herbivores. Carnivores obtain energy by eating other animals. Decomposers break down dead organisms and release nutrients back into the ecosystem. Energy pyramids illustrate how the amount of available energy decreases at each trophic level as energy is lost as heat at each transfer between organisms.
Principles of Ecology
This document discusses key concepts in ecology, including:
1) Ecology is the study of interactions between organisms and their environment. It examines relationships between living and non-living components.
2) Organisms exist within different ecological levels from cells to the biosphere. Food chains and webs show how energy flows between organisms as herbivores, carnivores and omnivores feed.
3) Populations grow over time according to exponential, logistic, or S-curve models until limited by carrying capacity due to factors like predation, competition, and crowding. Human population growth poses challenges for global carrying capacity.
Sect 14.3
1) The document discusses key concepts in ecology including producers, consumers, food chains, and symbiotic relationships.
2) Producers such as plants use photosynthesis to obtain energy from the sun, while some use chemosynthesis, and consumers obtain energy by eating producers or other consumers.
3) Symbiotic relationships include mutualism, commensalism, and parasitism, and an organism's niche describes how it finds resources and avoids threats in its environment.
25 how does energy flow between organisms in an ecosystem
This document discusses energy flow in ecosystems through food chains and webs. It explains that producers like plants get energy from sunlight through photosynthesis and are eaten by primary consumers like herbivores. Higher level consumers like carnivores obtain energy by eating other animals. The amount of available energy decreases at each level of the food chain from producers to primary, secondary and tertiary consumers. This is illustrated through the energy pyramid which shows that more organisms are needed at lower trophic levels to sustain fewer organisms at higher levels.
LIfe Process.pptx
The document discusses various life processes in living organisms including nutrition, respiration, and excretion. It describes how autotrophs like plants perform photosynthesis to produce their own food, while heterotrophs obtain nutrients by consuming other organisms. The stages of digestion and absorption in humans are summarized, including the roles of the mouth, saliva, teeth, and tongue in breaking down food for further digestion. Multicellular organisms have specialized tissues and organ systems to transport nutrients and waste throughout the body.
Ecology
This document discusses key concepts in ecology, including definitions of environment, ecosystem, and ecology. It describes different types of ecosystems like aquatic (saltwater and freshwater) and terrestrial ecosystems. It also covers ecological concepts such as populations, communities, habitats, food chains, food webs, and energy flow through ecosystems via photosynthesis and respiration. Finally, it discusses relationships between organisms like predation, competition, symbiosis, and adaptations.
Life processes "Part 1" " Class 10"
Science! Biology
PART - 1
PowerPoint Presentation on the topic - 'LIFE PROCESSES'. For Class:- 10th
Created By - 'Neha Rohtagi'.
I hope that you will found this presentation useful and it will help you out for your concept understanding.
Thank You!
Please give feedbacks and suggestions to get presentations on more interesting topics.
Do not repost or copy.
Ecosystems
Ecosystems refer to biological communities and their environments. They consist of living organisms interacting in natural habitats. An ecosystem harbors many habitats and organisms, while a habitat is specific to a certain organism or group. Organisms adapt to their habitats through features like gills in fish, spines in cacti, and nest building in weaver birds. Energy transfers between trophic levels in an ecosystem, from producers like plants through various consumer levels to decomposers. Threats to ecosystems include both natural disasters and human activities such as pollution, deforestation, and climate change.
ECOLOGICAL SYSTEM
An ecosystem consists of biotic and abiotic components that interact. Energy from the sun is absorbed by producers like plants through photosynthesis and transfers through consumers to decomposers. Organisms fill different roles as producers, primary consumers, secondary consumers, decomposers and form complex food webs. Nutrient cycles like carbon and nitrogen allow recycling of essential elements. Limiting factors shape ecosystem structure and function.
Interdependence in living beings.pptx
A food chain refers to the transfer of energy from one organism to another as each organism eats and is eaten. It typically involves producers, primary consumers, secondary consumers, tertiary consumers, and decomposers. Producers, like plants, get their energy from the sun. Primary consumers eat producers, secondary consumers eat primary consumers, and tertiary consumers are apex predators that eat secondary consumers. Decomposers break down dead organisms and waste to recycle nutrients back into the system.
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My Science Project
- 1. Callie Johnston - Coker
- 2. My Four Topics Food Chain Food Web Photosynthesis Ecosystem
- 3. Food Chains Example: The sun helping the plant grow, the plant growing, the caterpillar eating it, the bunny eating the caterpillar, the bunny being eaten by a hawk. Is a chain that contains three different parts to it that make up the chain called Consumers, Producers, and Decomposers.
- 4. Example: The sun provides food for the grass The grass is eaten by a grasshopper The grasshopper is eaten by a frog The frog is eaten by a snake The snake is eaten by a hawk Is made up many food chains.
- 5. Photosynthesis โข The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. โข Example: The sun beaming down on the grass to help it grow.
- 6. Ecosystem โข Is a community of living and non โ living things that function together. Within an ecosystem, organisms are adapted to the environment. โข Example: A squirrel living in a tree or a dog on a NON โ LIVING bed.