It is the last choice because their similar bone structures suggest they once had a common ancestor, which is why they are all mammals.
Answer:
there are two ATP molecules
It is just called: a simple fracture. BUT when the bone does pierce the skin it's called a compound fracture. <span />
Answer:
the complex of nerve tissues that controls the activities of the body. In vertebrates it comprises the brain and spinal cord.
Explanation:
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