That would be C
I hope this helped you.
Microscopes
Before the development of microscopes, the existence of cellular life was unknown. By examining a piece of cork, Robert Hooke first saw and named cells. Antony van Leeuwenhoek was the first person to see living cells.
Um I thought it was salt and water? I might be wrong though..
If an inherited behavior allows an animal to survive and reproduce, the behavior can spread ... Many animals respond to the cycles in the environment with daily or seasonal cycles of behavior. Hope that helps
