Por qué crees que los huevos con cáscara se llaman amnióticos?

The use of dna as evidence in criminal investigations became possible because of the

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.

What element is able to combine with itself and hydrogen to form large molecules ?