How can osteocytes remain alive within bone? Select one: Osteocytes have membrane extensions that protrude from bone and allow t
hem to exchange materials with the surrounding fluids. Haversian canals are bone structures that contain blood vessels that provide materials for the osteocytes. Bones are composed of only dead or dormant cells. Bones are hollow in the middle and the low pressure there draws fluid from the blood that nourishes the osteocytes.
Meiosis allows for genetic differences between parents and offspring.Fertilization would result in a zygote with twice as many chromosomes as the parents.
When disaster strikes, an ecosystem can change very quickly. When an event causes a drastic decrease in a population, it can cause a type of genetic drift called a bottleneck effect.
