• [History of life: Grades 9-12] Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry. (LS4.A)
• [History of life: Grades 13-16] Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry.
• [Evidence of evolution: Grades 9-12] An organism's features reflect its evolutionary history.
• [Evidence of evolution: Grades 13-16] An organism's features reflect its evolutionary history.
• [Mechanisms of evolution: Grades 9-12] Mutations are random.
• [Mechanisms of evolution: Grades 13-16] Mutation is a random process.
• [Studying evolution: Grades 9-12] Our knowledge of the evolution of living things is always being refined as we gather more evidence.
• [Studying evolution: Grades 13-16] Our knowledge of the evolution of living things is always being refined as we gather more evidence.

• Disciplinary Core Idea LS4.A: Evidence of Common Ancestry and Diversity

This article includes a set of discussion and extension questions for use in class, as well as a sidebar that would be appropriate for AP students. It also includes hints about related lessons that might be used in conjunction with this one. This example could be easily integrated into instruction on molecular genetics, since it deals with the genetic code. Get more tips for using Evo in the News articles in your classroom.

• Classification/Phylogenetics
• Natural Selection