Regulating the manufacture of is the function of rna.
protein
cells
energy

Which muscle is responsible for inhalation ?

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?