Please answer this for me

The answer is A

Explanation:

You can take a sample of blood from an animal or a leaf from a plant and put it under a microscope and you will see that they are both made of cells.

the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.

some inherited genetic mutations can be good for the offspring, so the answer is different genetic mutations cause many forms of cancer.