9
QuizMultiple Choice

Energy Flow in Ecosystems

Question 9 • CA-Life Science B (High School)

A diagram illustrates that grass is eaten by insects, birds, and mice. The insects are eaten by hawks, snakes, and toads. The birds and mice are eaten by foxes, hawks, and snakes. The toad is also eaten by the snake. Which best describes the diagram?

Answer
A
pyramid
B
food chain grid
C
food web
D
trophic level

Explanation

The diagram shows several interconnected feeding relationships: grass is eaten by multiple animals, and several predators eat more than one kind of prey. A network of connected food chains is called a food web. A food chain shows just one pathway of energy flow, so “food chain grid” is not the best description.

AI-written and checked against the verified answer.

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