Download You Tube Evolution

YouTube Evolution Internet Lesson
Directions: Visit each YouTube link below. Watch each video as you answer the following questions. There will be links on my
website for you to click on if you do not wish to type out each address.
A. Look at the Finches of the Galapagos Islands http://www.youtube.com/watch?v=l25MBq8T77w&feature=channel
1. How many species of finches were discovered by Darwin? ____________________________________
2. Which body structure was most significant between the finches? _______________________________
3. Each beak was an adaptation to a different _______________________________.
4. What does the woodpecker finch use to find food? ___________________________________________
B. Evolution of the Peppered Moth
http://www.youtube.com/watch?v=LyRA807djLc&feature=related
1. Which organisms would prey on the peppered moths? ________________________________________
2. Which color peppered moth was adapted before the industrial evolution? _________________________
3. Which event killed lichen, turning the trees black? ___________________________________________
4. Which color peppered moth was adapted after the industrial evolution? __________________________
5. What happened to the peppered moths after the air pollution was cleaned up?
____________________________________________________________________________________
C. Richard Dawkins: Vestigial Organs
http://www.youtube.com/watch?v=jhtOdv6ogyQ
1. Why is this bird called flightless? ________________________________________________________
2. Why was it better for this bird to lose the ability to fly?
____________________________________________________________________________________
3. Why do these birds have wings if they cannot fly?
____________________________________________________________________________________
D. Mutations - selection: the bacteria resist
http://www.youtube.com/watch?v=zjR6L38yReE
1. Name 2 ways the body tries to defend itself when infected by bacteria.
a. ______________________________________________________________________________
b. ______________________________________________________________________________
2. Which cells inside the body try and fight off the bacteria infection first? __________________________
3. Name two farm animals that are frequently given antibiotics also?
a. ________________________________ b. ________________________________
4. What are portions of DNA called? ________________________________________________________
5. What are errors in the copying of DNA called? _____________________________________________
6. True or False: Resistant bacteria are easily killed by antibiotics.
7. Without competition for food, what happens to the resistant bacteria? ____________________________
8. In natural selection, what tends to happen to those who have advantages? ________________________
9. How old is life on Earth? _______________________________________________________________
E. Evidence for Evolution
http://www.youtube.com/watch?v=GOKW_7KajCU
1. Neil Shubin was trying to find a transition fossil between ________________ and ________________.
2. List two types of amphibians.
a. ________________________________ b. ________________________________
3. What are animals with four limbs called? __________________________________________________
4. Tiktaalik shows how land animals may have evolved from _________________________.
5. Besides fins, what else does Tiktaalik have that resembles fish? ________________________________
6. Besides a head with eyes on top, what else does Tiktaalik have to resemble amphibians?
____________________________________________________________________________________
F. Evolution in Action: Ring Species
http://www.youtube.com/watch?v=PjcFSy1KCTI
1. Where can this type of salamander be found? _______________________________________________
2. Define SPECIATION.
____________________________________________________________________________________
3. This question is not mentioned in the video, but you should know it anyways. What type of isolation is shown in the video
where the central valley of California has separated and isolated the two groups of salamanders?
________________________________________________________________________
4. Once separated, how did the two groups of salamanders become different?
____________________________________________________________________________________
5. Why weren’t the salamanders able to reproduce when they were eventually reunited at the south end of the central valley?
____________________________________________________________________________________