Answer:
substrate
Explanation:
A substrate is the term for a molecule which combines with enzymes when acted upon and changes into a new substance.
I think the answer to this is B.
Answer:
In cells use oxygen to release energy stored in sugars such as glucose. In fact, most of the energy used by the cells in your body is provided by cellular respiration.
Explanation:
They stuck because the tree trunks were white.
