48
Lesson 48 of 84 · Cells
LessonThe Fossil Record and Evolution (Part 3)
What You'll Learn
The fossil record provides evidence for evolution by showing how organisms have changed over time. Transitional fossils show features of both ancestral and descendant species.
Key Words
- dominant
- recessive
- mutation
Steps
Step 1 — Read
Study the diagram and label the parts you recognize.
Step 2 — Do
Extract DNA from a strawberry using dish soap, salt, water, and rubbing alcohol. Observe the stringy white substance—that's DNA!
Step 3 — Observe
Use your senses (except taste) to describe what you notice.
Step 4 — Record
Write a summary of your findings in 3-5 sentences.
Check Your Understanding
Question 1
1 of 3What provides evidence for evolution?