please help: Feedback loops help maintain internal conditions while external conditions may be changing. What is this process known as?

Which process is involved in growing crops? irrigation transportation recreation condensation

The body is protected against harmful flu viruses by

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.