Answer:
A community is a group people who all live in the same environment and place and help each other out in certain situation.
Explanation:
Circadian rhythm, regulated by the brain’s natural clock
<span>Living things are made of cells.Living things obtain and use energy.Living things grow and develop.Living things reproduce.Living things respond to their environment.<span>Living things adapt to their environment.</span></span>
Answer:
as the human population grows, more people will on be on earth and if those people pollute in the ocean the ocean will get dirtier and unhealthy for the underwater creatures.
Pumps blood to the parts of the body and also it's-self
