You look at a cell under a microscope, and you notice the cell does not contain a nucleus. What kind of cell are you looking at? Heterotrophic
Prokaryotic
Autotrophic
Eukaryotic

Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect

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.

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species