Answer: they allow air to enter lungs and also permits air into the body
Explanation:
<span>I believe it is C.
Waste is removed through a designated opening.</span>
The answer would be lipids, they are a type of biomolecule and a nucle is an organelle
Involved a dramatic and sudden increase
The earth's inner core is the innermost layer of the earth. Primarily, it is a solid ball composed of an iron-nickel allow and some other elements, which holds a radius of about 1,220 kilometers.