In genetic drift, the allele frequencies in a gene pool change because of
a. mutations.
b. chance.
c. natural selection.
d. genetic equilibrium.

One of the largest seafood exporters to the united states is a. china b. brazil c. mexico d. saudi arabia

Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them

What factors contribute to the effect an environmental toxin has on the human body?