Explain what is meant by the statement "Classification systems are the inventions of humans; diversity is the product of evolution."

ability to bond woth oxygen

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.

      n