The first step that occured in the speciation of the galapagos finches.
a) establishing genetic equilibrium
b) behavioral isolation
c) ecological competition
d) founders arrived

it restores trees to areas where they once grew.

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.