What is the idea of continental drift?

How does a gymnosperm prevent itself from pollinating the same tree

Plz ! having a smooth seeds is the dominant trait. having wrinkled seeds is a recessive trait. the offspring of two plants with smooth seeds, a. must have smooth seeds. b. may have smooth or wrinkled seeds. c. must have wrinkled seeds. d. have a 25% change of having smooth seeds.

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry