Which organs are responsible for producing the fluid to give sperm nourishment and motility

What are two reasons for why a species might disappear from the fossil record?

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.

The production of cells during mitosis into specialized function is recombination or differentiation