Chemotherapy is used to treat cancer because it destroys any cells undergoing mitosis. this explains why all normal cells in the integumentary and digestive track are usually affected, which may cause hair loss and digestive side effects such as nausea and vomiting in these patients

Which of the following is an example of a non-falsifiable hypothesis? a. there is a teacup orbiting the milky way galaxy. b. there is no life on mars. c. the human species started in africa. d. humans cannot live without the amino acid methionine

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic