Does carbonhydrates provide the most energy or kilocalories per gram of food ?

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.

When analyzing tree rings, what do scientists assume a thin ring indicates?

Did you know that a single bee would have to go to over 2 million flowers to make a single pound of honey?