Explain how muscle action results in movement of your arm

Liquid water turns into water vapor at which step in the water cycle

Defend or refute the argument that the government has too large a presence in the agriculture industry.

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.