The blood cells that are necessary for the clotting of blood are

Consider darwin's first writings on the theory of natural selection. an important point of darwin's essay on the principle of population, written in 1798, was a peer's observation that in nature plants and animals produce far more offspring than can survive, this observation can be attributed to a) charles lyell. b) thomas malthus. c) jean-baptiste lamarck. d) johann friedrich meckel.

What maintain homeostasis when a persons internal body temperature is 97.5°f

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?