Answer: crossing over, process in genetics by which the two chromosomes of a homologous pair exchange equal segments with each other. Crossing over occurs in the first division of meiosis . At that stage each chromosome has replicated into two strands called sister chromatids.
B it's a vegstigial trait
Many biology texts today still refer to the appendix as a vestigial organ
100% since she already has it.
Answer:
B. Convergent and subduction zones can cause trenches
Explanation:
Answer:
youngest is top oldest is bottom
