Question

Which of the following organisms is a heterotroph?
A. mushroom

B. alga

C. wheat

D. sunflower

Answer 1

Do you know the difference between and autotroph and a heterotroph?

Let me go over it again for you, just in case.

AUTOTROPHS produce their own food.
They can do this using photosynthesis or chemosynthesis.
(Most plants are autotrophs.)

On the other hand, HETEROTROPHS cannot produce their own food.
They have to get food and nourishment from other organisms.

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So, let's go back to the question.
Which of the following organisms is a heterotroph?

Mushrooms actually absorb nutrients from decomposing organisms, around them.
They don't use photosynthesis, or chemosynthesis.
They cannot make their own food.
So, they are NOT producers. They are NOT autotrophs.

Mushrooms are heterotrophs.