How have humans impacted the carbon cycle resulting in global warming ?

answer: a) a compound microscope has a greater magnification ability than a simple microscope.

explanation:

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

not sure if this what   you'r looking for would be percent composition

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;