Lesson summary for:
Investigating Common Descent: Formulating Explanations and Models
Overview:
Students formulate explanations and models that simulate structural and biochemical data as they investigate the misconception that humans evolved from apes.Author/Source:
National Academy of Sciences Grade level:
9-12 Time:
Two class periods. Concepts: - Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry.
- Similarities among existing organisms provide evidence for evolution.
- Anatomical similarities of living things reflect common ancestry.
- All life forms use the same basic DNA building blocks.
- A hallmark of science is exposing ideas to testing.
- Our understanding of life through time is based upon multiple lines of evidence.
- Scientists use the similarity of DNA nucleotide sequences to infer the relatedness of taxa.
- Scientists use anatomical evidence to infer the relatedness of taxa.
- Scientists may explore many different hypotheses to explain their observations.
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