Which of the following structures is NOT essential for your SURVIVAL?

The process by which a portion of a population moves into a new environment and diverges from the parent population, resulting in the formation of two separate species occurs. When gene flow is re-established, the reproductive barriers between the two species are weak. This results in

The assumptions of the Hardy-Weinberg equilibrium include all of the following EXCEPT

A mutation in which one base pair in the DNA of a gene is altered is called a

Two communities have the same yearly mean temperature and rainfall but very different species compositions and characteristics. The best explanation for this phenomenon is that the two communities

Bulk transport of material out of cells is called

A DNA molecule is composed of two polynucleotides joined by hydrogen bonding between their nitrogenous bases. If the one strand is known to have the nucleotide sequence, ATCCTTCCTA, what must be the complementary strand’s nucleotide sequence?

Depletion of the ozone layer in Earth’s upper atmosphere I. is predicted to cause melting of polar icecaps, rise in sea levels, and increase in frequency and intensity of violent storms over the next century.II. is due to destruction of ozone by chlorine from chlorofluorocarbon (CFC) pollutants that originate from refrigerants and aerosols. III. has resulted in a greater amount of the sun’s damaging ultraviolet radiation reaching Earth’s surface, rather than being blocked or reflected.

NaCl (sodium chloride) is formed by a(n)

The biogeochemical cycle that does not have an atmospheric component and therefore only cycles locally is the