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:
They face vary of things such as asexual reproduction
Explanation:
Answer:
in the first question
the air move from higher concentration to lower concentration and lower to higher
Explanation:
when the oxygen gets in the place in the chest increase and when we release the air the will be contracted
when the air is outside chest will have no air
outside air will get into chest
and in verse vice
