Charles darwin applied a wide variety of observations to help him develop his ideas about evolution. Which general statement describes several of the observations that darwin made and considered, and later incorporated into his theory of evolution?.

b brown mice / white sand dunes

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.