PBS classification activity
5. What is the tree of life? 6. How does it show relationships? 7. What is a primitive trait? What is the living relative of shark, wolf, and dolphin? 8. In the 2nd tree, what was more closely related? What makes them more closely related? 9. What are the traits of the outgroup? 10. In the 3rd tree, what was more closely related? What makes ... ................
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