Which two systems are primarily responsible for maintaining homeostasis during exercise? explain how each of the system the body maintain homeostasis. ( it's due today and im still struggling t t)

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.