In this graph, the prey and predator populations
periodically increase and
decrease. This is an
example of which type of
population growth?

A. exponential
B. logistic
C. stable
D. cyclical

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.

i think the answer is b.