Why does the concentration of mercury in the tissues of organisms increase as it moves through the tropic levels?

a) Animal cells absorb mercury better than algal cells do.

b) The mercury does not affect the smaller organisms.

c) The mercury in the small organisms is not activated until the larger organism
eats the mercury

d) The mercury in the cells of each organism that is eaten accumulates in the
larger animal's cells.

The answer is D

Explanation:

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

the correct answer in apex is tissue development, i know because i just had this question