Askeleton forming outside the animal’s body is a(n)
a. endoskeleton.
b. exoskeleton.
c. notochord.
d. vertebrate

How had the study of mitosis affected scientists knowledge of cancer

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.

Why was mendel's work not accepted at the time? o a. his results were false. o b. he did not repeat his experiments. o c. he did not have any data. o d. his results were surprising,