Gene pools 2. Hardy-Weinberg equilibrium 3. Hardy-Weinberg conditions 4. Assortative mating e. Natural selection pp. Due to heterozygote advantage.
Disruptive selection favors extreme phenotypes and selects against the average.
Mutualisms E. Speciation 1. Hybrid sterility 4. Gradualism model of speciation b. Punctuated equilibrium model of speciation F. Extinction 1. Localized distribution 2.