Why is a mushroom considered a heterotroph

D.) It obtains nutrients from it's environment.

Explanation:

A mushroom is considered a heterotroph because it gets it's nutrients from the outside environment.

Explanation:

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c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.