1. Mouths are quiet.
Homework in your folder.
Begin the quick review section of your notes.
Raise your hand if you need something.

2. Quick Review
1. Type of current that changes direction : alternating current 2. The amount of force pushing electrons through a wire: voltage 3. Characteristic of electricity that must be changed before it can be sent long distances:

3. Quick Review
4. Device that increases or decreases the voltage of electricity: transformer 5. Which has a higher resistance, a thick or thin wire? Thin wire. Why? It is more difficult for electrons to flow through a thin wire.

4. Ecosystems and Adaptations
Lesson 6.7 – Evolution

5. I can explain how adaptations impact an organism’s ability to reproduce and how this leads to natural selection. (3a)
1. When the traits of a species to change over time = evolution 2. Explanation for why evolution occurs = natural selection

6. I can explain how adaptations impact an organism’s ability to reproduce and how this leads to natural selection. (3a)
a. Created by Charles Darwin. b. Natural selection occurs when an environment changes. c. The organisms that have adaptations that help them survive the changes are most likely to survive and reproduce. d. Nature “selects” the organisms that are best adapted.

7. I can explain how adaptations impact an organism’s ability to reproduce and how this leads to natural selection. (3a)
3. Natural selection can cause evolution because within a species, members of the species are not exactly alike and have differences in their traits = variations 4. Natural selection can lead to formation of a new species. The new species cannot reproduce with the old species.
All the same species but have different appearances.
Different species formed because of natural selection. Can’t interbreed.

8. I can explain how adaptations impact an organism’s ability to reproduce and how this leads to natural selection. (3a)
5. If no members of the species have variations that allow them to survive in a changed environment, the species can permanently die out = extinction
Dodo bird (extinct)
Javan rhinoceros (endangered <60 alive)
Sumatran tiger (endangered <600 alive)

9. WORK WITH US…NOT AHEAD OF US!
Guided Practice
WORK WITH US…NOT AHEAD OF US!

10. If you have more than ONE demerit you are not allow to participate.
I can explain how adaptations impact an organism’s ability to reproduce and how this leads to natural selection. (3a)
Rules
If you have more than ONE demerit you are not allow to participate.
You must follow ALL directions.
It must be SILENT during the activity.

11. I-N-D-E-P-E-N-D-E-N-T PRACTICE
Do you know what that means?

12. Exit Ticket
(5 Questions)

13. 1. Who created the theory of evolution and natural selection?
Rudolf Virchow
Charles Darwin
Joseph Kralik
Timothy Riggins B

14. Survival of the fittest variations
2. Which term best describes a specially developed characteristic that enables an organism to live in a specific environment?
adaptations
natural selection
Survival of the fittest
variations A

15. It will undergo many genetic mutations.
3. What will likely happen to a species that lacks the variation necessary to adapt to a changing environment?
It will undergo many genetic mutations.
It will become extinct over time.
It will begin to reproduce asexually.
It will become resistant to disease. B

16. 4. Which of these supports the theory of natural selection?
All organisms produce more offspring than can survive.
Organisms live in harmony with one another despite limited resources.
Organisms with favorable traits are more likely to die.
Over time advantageous traits will be found in more of the population. D

17. Behaviors that lead to reproductive success have evolved in species.
5. The Bird of Paradise is a species that has been observed in the jungles of New Guinea. In an attempt to attract females, the males shake their bodies and sometimes hang upside down to show off their bright colors and long feathers. Females generally chose to mate with the “showiest” males. Which concept is supported by these observations?
An organism’s individual physical growth can be dependent on behaviors of the population.
Asexual reproduction can lead to demanding courtship displays to attract mates for diversity.
Behaviors that lead to reproductive success have evolved in species.
Strange and vibrant courtship behaviors lead to extinction of particular species. C