Answer:a
Explanation: because naturally it occurs anytime it wants to
Answer:
Explanation: Plankton. ... Plankton includes plants and animals that float along at the mercy of the sea's tides and currents. Their name comes from the Greek meaning "drifter" or "wanderer." There are two types of plankton: tiny plants--called phytoplankton, and weak-swimming animals--called zooplankton.
Answer:Insulin is a horome that your pancreas make to allow to use glucose
Explanation:
Really just cells ..
But not really just cells
Gametes are sex cells. The reproductive system.