In internal fertilization, the male fertilizes the egg inside the female, and then the female lays the egg. Most reptiles lay eggs that are amniotic.

When water freezes, it . contracts expands

Blood stem cells may develop into any kind of human blood cells. what kind of stem cells are blood stem cells? a. multipotent stem cells o b. totipotent stem cells o c. pluripotent stem cells o d. unipotent stem cells

Which areas of earth receive the most precipitation on average? a. tropics b. temperate zones c. regions near 30? n and s latitudes d. polar zones 1