D. Asteroids vary greatly in size and are mostly made up stone, iron and nickel
<em>Answer:</em>
<em>C) </em><u><em>mitochondrion</em></u>
Explanation:
Mitochondria mitochondria is a semi autonomous organelle.
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( . . ) <em>hope this helps!</em>
<em>( )</em>
TEMPERATURE: Although enzymes are also affected by the pH and the concentration of the enzyme and substrate in their environment, this specific example shows that enzymes are affected by temperature.
<span>The purpose is to regulate cell division. Preventing it from occuring when it is not needed, and inducing it when it is.
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