Answer:
Signposts that determine the fate of cells.
Explanation:
Embryos for humans and other animals often look alike at certain developmental stages because they share ancient genes. This expression means that a more advanced organism, like humans, will resemble less advanced species during it's development stages.
Answer:
movement to and fro or around something, especially that of fluid in a closed system.
Answer:
B. Liquid water flowed on its surface
The answer is B). Genetic screening basically testing for the genetic traits of an individual. Therefore the answer would be B).