The outermost tissue layer of a cnidarian is the
a. ectoderm.
c. endoderm.
b. mesoglea.

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.

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

What in scientific term why the salty popcorn causes this thirst