The human population of the United States passed through the demographic transition between 1790 and 1910. How has the population changed after 1910? A. The population has been increasing exponentially.
B. The population has been increasing in a pattern explained by logistic growth.
C. The population has been fluctuating at or near carrying capacity.
D. The population has been decreasing at a steady rate.

Identifying the elements of hypothesis-based science this experiment is an example of hypothesis-based science. what question did the researchers ask? what question did the researchers ask? can predation result in selection for color patterns in guppies? do female guppies prefer to mate with males with bright color patterns or drab colors? do male guppies in pools with pike-cichlid fish have brighter color patterns than females in the pool? do killifish prefer to prey on juvenile guppies or adult guppies?

During the process of two rails or sides break apart and attract new nucleotide bases to form a new and complete strand.

Everything in the universe originated from a single point. how was it possible for everything in the universe to have occupied a single point in space?