Which of the following is least likely to provide evidence of biological evolution?
common geographic distribution
shared metabolic pathways
similar dna sequences
universal genetic code

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.

satellites are frequently used to make observations of the orbit on earth