Unit 3 Science Flash Cards

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Food

Back

Any nutritious substance that people or animals eat in order to give them energy and building blocks to grow and repair.

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Energy

Back

It makes things happen. (Or more formally: the ability to do work)

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Photosynthesis

Back

A process by which plants use sunlight to make sugar from carbon dioxide and water.

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Ecosystem

Back

A biological community of interacting organisms and their physical environment.

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Food Chain

Back

A sequence of living things in which each one feeds on the living thing below it.

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Food Web

Back

A model made of intersecting food chains.

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Decomposer

Back

Living things that break down dead and decaying organisms. The most common decomposers are bacteria and fungi.

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Producer

Back

A living thing (almost always a plant) that takes energy from the sun and makes its own food. They are found in the first level of a food web.

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Consumer

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An organism that relies on other plants and animals.

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Primary Consumer

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An organism, typically an herbivore, that feeds directly on producers (like plants or algae).