Its call a niche hope this helps :)
Answer:
cardiovascular and respiratory systems
Explanation:
the cardiovascular system includes your heart and blood vessels, which function to remove deoxygenated blood from and return oxygenated blood throughout your body
A gametophyte is a multicellular haploid that is formed from the spore. It is true that the life cycle alternates from haploid to diploid.
Answer:
Diffusion
Explanation:
Diffusion is a passive process of transport. A single substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across the space.
I’m pretty sure the answer is A but if you already ruled that out try B
