some people have the ability to roll their tongues (rollers) while other people cannot roll their tongues (non-rollers) . What was the dependent variable, independent variable & one fixed variables ?​

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.

Suppose you were the commissioner of corrections for your state. which correctional activities might come within your domain? which mostly would not

Which of the following is most likely the result of an organism having lipids in its body a) water cannot be absorbed through the surface of a leaf b)human eats fruits to get a quick source of energy c) a sheep sleeps for more hours in the winter d) a warm river is filled with fish and algae