(*need done asap*)what does the theory of evolution tell us about living things?
a. the environment can make them change rapidly over a short period of time.
b. they create fossils when they die.
c. their environment makes them change slowly over time.
d. they can give us clues about extinct species.

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.