I think its A. but I'm not sure so sorry if I'm wrong
B,
predators can help limit prey populations? i’m not sure on that one.
parasites don’t want to kill their host because it relies on its host’s body and body functions. such as a tick on a dog.
i really hope this helps a little
Answer:
Friction decreased when he went from pavement to ice and then increased two more times.
Explanation:
These structures are known as Ribosomes.
