Question

1. Trace the flow of a sperm cell from the reproductive organ in the male to the point of fertilization in the female by writing the names of the structures it must pass through 2. Progestin minipil or implant, vasectomy, and tubal ligation are the most effective forms of birth control How have these birth control methods affected the infection rate of sexually transmitted diseases? 3. Make a drawing and label the structures of a blastula and gastrula. Different species of plants have different amounts of endosperm in their seed. For example, bean seeds, like the ones used in the exercise, have many times more endosperm than lettuce seeds. Based on this observation, hypothesize which seeds could be planted in deeper soil and have a higher survival rate? Explain your answer 4.

Answer 1