c. because only male repoduce sperm
The answer is chemical work. A chemical work happens when a substance is chemically digested or when it is already broken down due to chemicals. An good example for this<span> is building large molecules such as proteins.Chemicals break ATP bonds to another molecule.</span>
We need blood because it carries oxygen and helps us sustain life. The organ that pushes blood through the body is the heart.
Answer is b hole this helps
The answer is B, because in mRNA, the only change in bases is that A transcribes into U
