Answer:
A hill is a part of land that rises higher then everything surrounding it its like a little bump in the earth. Mountains have less steep and not as high but a hill will usually have and obvious summit which is its highest point
When your body temperature rises because of an infection, it's called a fever<span>. </span>Fevers<span> are caused by chemicals called pyrogens flowing in the bloodstream. Pyrogens make their way to the hypothalamus in the brain, which is in charge of regulating body temperature.</span>
Answer:
d) do all jobs for survival
Explanation:
A single cell perform all its activity on its own.
