Answer:
c. provide the energy that establishes the proton gradient
Explanation:
The answer is gametes, or sex cells.
The site
of calcium regulation is what differs from a mechanism of contraction in smooth
muscle from skeletal muscle. One of the
important functions of skeletal muscle contraction is production of heat and where
calcium seemingly acts to remove the blocking action of tropomyosin.
C. Chemicals because chemicals do not have characteristics of living organisms.
