1.__ A pattern in which species influence each other's evolution and therefore evolve in tandem. 2.__a characteristic which helps an organism survive in a specific habitat.
3.__Evolutionary process by which certain beneficial traits becomes more common within a
population, changing the characteristics (traits) of a species over time.
4.__The variety of life and its processes, including the
variety of living organisms, the genetic
differences among them, and the communities and ecosystems which they populate.
5.__the change in species over time.
6.__Animal or plant breeding done by artificially choosing which individuals will reproduce according
to desirable traits.
7.__The preserved remains or traces of organisms; fossils provide extremely rare but vivid windows to
the past.
8.__Structures which descended (evolved) from the same structure within a common ancestor; they
may or may not serve the same function.
9.__Structures which are reduced and perhaps even nonfunctional in one species, but homologous to
functional structures in a closely related species.
10.__The ability of an organism with a certain genotype to survive and reproduce; it is often measured
as the proportion of that organism's genes in all of the next generation's genes.
11.__The complete set of unique alleles in a species or population.
12.__A group of individuals of a single species that mate and interact with one another in a limited
geographic area.
13.__State of a population in which allele and genotype frequencies remain constant from one
generation to the next -a non-evolving population.
14.__The loss of diversity resulting from a drastic reduction in population size and subsequent genetic
drift.
15.__The loss of genetic diversity resulting from colonization of a new area by a small group of
individuals who have broken off from a larger population.
16.__Random changes in allele frequencies in small populations.