1. The document provides definitions and examples of key concepts in evolution, including convergent evolution, divergent evolution, adaptive radiation, extinction, and mass extinction.
2. Convergent evolution is when two species evolve similar traits independently, while divergent evolution is when species evolve differing traits from a common ancestor.
3. Adaptive radiation is a type of divergent evolution where a single ancestral species evolves into many new species adapted to different environments.
4. Extinction is when a species dies out completely, while mass extinction is the sudden extinction of many species, such as the five mass extinctions in Earth's history.
2. Thirsty for T-STEM Thursday!!! A
Patent Lawyer!
• What are thooooose?
• Patent lawyers can help inventors research
their invention, guide them through the
patent application process and create a patent
that will protect that invention.
3. Wait what is a patent?
• A government authority or license conferring
a right or title for a set period, especially the
sole right to exclude others from making,
using, or selling an invention. (like a copyright
license)
7. What is convergent evolution?
• When two species or populations evolve to become
more similar to each other.
Hint: Evolution of analogous structures is always an
example of convergent evolution.
8. What is divergent evolution?
• When two species or populations evolve to become
more different from each other
Hint: The evolution of homologous structures is
always an example of divergent evolution.
10. What is adaptive radiation?
• A special type of divergent evolution
• One common ancestor species evolves into many
new species.
Example: Galapagos finches; one common ancestor
evolved into many different new species.
12. What is a mass extinction?
• When many species suddenly go extinct
• There have been 5 mass
extinctions in the history
of the Earth
• Some people think a 6th mass
extinction is happening now,
due to human activity.
13. Exit Ticket
1) What is convergent evolution?
2) What is divergent evolution?
3) What is adaptive radiation?
4) What is extinction?
14. When you are done with the test:
• 1. Scan the test
• 2. Leave the scantron and the test below the
computer (if you get an A or B, bring me your
merit card)
• 3. Work on homework
• 4. Work on extra credit paragraph
• 5. If you finish, please write me a letter about
what you are going to do during thanksgiving
break—I’d love to know!
Editor's Notes
Coming from DIFFERENT places, but getting more similar.
Coming from the SAME place, but getting more different.