Answer:
A piloted spacecraft is always manned
Answer:
Crocodiles are actually the closest living relatives to birds
Answer:
Apoptosis is a multi-step, multi-pathway cell-death programme that is inherent in every cell of the body. In cancer, the apoptosis cell-division ratio is altered. Cancer treatment by chemotherapy and irradiation kills target cells primarily by inducing apoptosis.
Explanation:
I believe the answer is C) is different lengths of time for different types of cells.