Food Webs and Population Changes in Ecosystems

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What is a food web?

Back

A food web is a system of interconnected food chains that shows how energy and nutrients flow through an ecosystem.

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What is a primary consumer?

Back

A primary consumer is an organism that eats plants (producers) to obtain energy.

Front

What happens to the population of grass if the fox population increases?

Back

The population of grass would decrease because more foxes would eat more rabbits, allowing grass to grow.

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What is a secondary consumer?

Back

A secondary consumer is an organism that eats primary consumers (herbivores) to obtain energy.

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What is a producer?

Back

A producer is an organism, like a plant, that makes its own food through photosynthesis.

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What is a consumer?

Back

A consumer is an organism that needs to eat other organisms to obtain energy.

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What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organisms and waste, returning nutrients to the soil.

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What is the relationship between predators and prey?

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Predators hunt and eat prey, which helps control the population of prey species.

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How can we predict population changes in an ecosystem?

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By studying past population data and environmental factors, we can make predictions about future population changes.

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What is an example of a tertiary consumer?

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An example of a tertiary consumer is a hawk that eats snakes, which are secondary consumers.