Aspecies is a group of organisms capable of mating and producing offspring, and speciation is the process of forming a new species.

one way a new species may form is by geographic isolation. this occurs when members of a population are physically separated, for example, by a river, or a desert.

after the separation the two populations, responding to different conditions, will adapt differently, and so their evolutionary paths will

In which of the following ways is the function of the surface of a microsphere similar to the function of an actual cell membrane? a. both make it possible for the conditions in the interior to be different from the conditions outside. b. both provide a barrier that keeps water from flowing across it so the interior remains dry. c. both separate the rna that forms in the interior from any rna that might form in the environment. d. both can actively move molecules into the interior or out into the surrounding environment.

Deer cave cannot support photosynthesis is as not enough sunlight is present. in spite of this, it still has a complex food chain. what is the energy foundation of this food chain?

Which two factors contributed to creating a global culture? the creation of the united nations improvement in telecommunications health issues such as the ebola virus increased opportunities for global travel