An organism that has 2 like genes for a given trait

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.

The cluster of developing cells from conception until birth is called an

Which of the following is the sl unit used to measure temperature a. kilogram b. liter c. meter d. kelvin