What happens to energy as it moves through the food chain?

A food chain always start with a producer, a organism that makes food. This is usually a green plant, because plants can make their own food using photosynthesis.

A food chain ends with a consumer, a animal that eats a plant or another animal.

For example,
Grass --> Cow --> Human

Note: the arrows in a food chain show the ways energy is moving. They do now show 'what eats what'!

Hope this helps :)

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Average growth population growth