Answer:
Because lichens enable algae to live all over the world in many different climates, they also provide a means to convert carbon dioxide in the atmosphere through photosynthesis into oxygen, which we all need to survive. ... Lichens can provide us with valuable information about the environment around us.
Mitosis is a process that makes DNA synthesis
Answer:
It would be a because it helps with immunity
A nervous system because worms don't have nerves
"Testes and Ovaries"
Two hormones are primarily responsible for pubic hair during puberty. Androgen and Estrogen, of which are spectively provided by the "Testes and Ovaries". Pubic hair is the bodies attempt of protecting those organs against friction with contact of skin.
