Ture of false Ecosystems have trouble adjusting to short-term changes.

False

Explanation:

A healthy ecosystem can adapt to short-term changes. Many species have adaptive characteristics that help them respond to natural, short-term changes.

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.