• [History of life: Grades 13-16] Rates of evolution vary.
• [Mechanisms of evolution: Grades 13-16] Evolution results from natural selection acting upon genetic variation within a population.
• [Mechanisms of evolution: Grades 13-16] Inherited characteristics affect the likelihood of an organism's survival and reproduction.
• [Mechanisms of evolution: Grades 13-16] Natural selection sometimes favors heterozygotes over homozygotes at a locus.
• [Mechanisms of evolution: Grades 13-16] Heterozygote advantage preserves genetic variation at that locus (i.e., within the population, it maintains multiple alleles at that locus).
• [Studying evolution: Grades 13-16] As with other scientific disciplines, evolutionary biology has applications that factor into everyday life, for example in agriculture, biodiversity and conservation biology, and medicine and health.

There are no NGSS/DCI concepts currently linked to this resource.

Use this resource to relate evolutionary concepts to the topic of the animal immune system (or get more suggestions for incorporating evolution throughout your biology syllabus). This article includes a set of discussion and extension questions for use in class, as well as advanced discussion questions for undergraduates. It also includes hints about related lessons that might be used in conjunction with this one. Get more tips for using Evo in the News articles in your classroom.

• Genetic Variation
• Natural Selection
• Relevance