Energy Flow Through Ecosystems

AP Biology· difficulty 3/5

grass mouse rabbit snake fox hawk

In this food web, the hawk is best classified as

  • A

    A producer (synthesizes organic molecules through photosynthesis)

  • B

    A primary consumer (eats producers like grasses and seeds directly)

  • C

    A secondary consumer (eats primary consumers like rabbits and mice)

  • D

    A tertiary consumer (eats secondary consumers like the snake/fox)

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Explanation

Trophic level: hawk eats secondary consumers (snake, fox) → tertiary consumer (3rd-level carnivore). Producers like grass are level 1, primary consumers (mouse, rabbit) level 2.

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