Evidence for Common Ancestry
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Objective
I can explain how common ancestry is supported by evidence from comparative anatomy, embryology, and the fossil record.
Part 1 of 4
Warm-up video
CrashCourse · 11:44Vetted channel
We don't generate video — this one is by CrashCourse on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
The theory of evolution is a set of ideas that explains observations from embryology, paleontology, and other disciplines.
- 2
Homologous structures in different organisms, such as the forelimbs of whales, bats, and humans, suggest a shared ancestry.
- 3
Fossils of ancient cetaceans with hind legs and a pelvis show how whales evolved from land mammals, sharing an origin with bison and pigs.
Part 3 of 4
Practice
12 questions
What is the central idea of the theory of evolution?
According to the video, what are some of the disciplines that support the theory of evolution?
Part 4 of 4
Exit ticket
Quick comprehension check
“Describe one piece of evidence from either comparative anatomy, embryology, or the fossil record that supports the idea of common ancestry.”
Sample answer included in the free materials
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Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
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