What do you mean but if you mean what I think you mean then you take half of the tadpoles
B)Facilitated diffusion is a form of active transport. Regular diffusion is a form of passive transport.
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.