Eukaryotic cells, like those seen here are very similar in structure. If we compare the three cells we note that both the plant and
fungal cell have something in common, something that is lacking in the animal cell. That is
A)centrioles composed of proteins.
B)ribosomes composed of mRNA and proteins
C)a cell wall composed of a polysaccharide
D)specialized proteins organized into a cytoskeleto

it takes hundreds of years to become stable.

if you have another question lmk.

multiply it by 5 in order for you to understand i cant give an exact answer.

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.