Class: ___
Evolution Videos
Name: ____________________________
Core 1 2 3
YouTube: https://www.youtube.com/playlist?list=PL5270149AB732F0FB
Video 1: Isn’t Evolution Just a Theory? (6 min,)
1. What does “theory” mean to most people, in everyday-language?
_______________________________
2. Darwin’s theory of evolution by natural selection explained how species ____________________.
3. People used to think the _________________ revolved around the _______________. But new
______________________ led people to a new theory, that the earth revolved around the sun.
4. NASA scientists used _____________________ __________________ to predict what it would be like to
move in a lunar environment.
5. An _____________________ is a conclusion you can draw from the available evidence.
6. Darwin made an inference that all living things shared a common ____________________________.
7. Today, scientists continue to find evidence that supports Darwin’s theory in
the _______________________________ record and in ___________________________________.
Video 3: How Do We Know Evolution Happens? (7:06)
There is evidence that supports evolution at the chemical, molecular, and anatomical level.
8. Give an example of chemical evidence: ____________________________________________
9. Give an example of anatomical evidence: ___________________________________________
10. What connects the life we know today with their ancestors from the past? ____________________
11. Why is the evolution of whales such a mystery? Whales used to live _________________ (where?), but
now they live ___________________ (where?). The mystery is ________________________________
12. The bones within a whale’s flipper resemble the bones in a monkey’s ___________, a bird’s
_____________, and a frog’s ____________.
13. Fossil records have led scientists to conclude that whales evolved from a _________________ (a wolflike creature) over about _______ ________________ years (how many years?).
Video 4: How Does Evolution Really Work? (6:42)
14. Natural Selection is when: Populations ____________________ in response to environmental pressures,
and they become _______________________ to new conditions and change over time.
15. What question are these scientists, studying hummingbirds, trying to answer?______________________
____________________________________________________________________________________
16. What are the four processes of Natural Selection?
1.__________________________________________________________________________ ! “individuals within a ________________ vary from one to the other” 2. _________________________________________________________________________ ! “parents make more __________________ than can survive” 3. _________________________________________________________________________ ! “competition for ________________, ________________, and mates.” 4. _________________________________________________________________________ ! “those who “win” the competition are more likely to ________________ & __________________”
17. Charles Darwin identified __________________________________ as the most important force in
evolution.
Video 5: Did Humans Evolve? (5:36 minutes)
18. In your own words, what is the difference between a relative and an ancestor?
a) Relative - ____________________________________________________________________________
b) Ancestor - ____________________________________________________________________________
19. According to Evolutionary Theory, if you trace our history back about 5 million years, you will find the
common ancestor between _________________________ and ____________________________.
20. Did we evolve from today’s primates like chimpanzees or gorillas? _________
21. What new evidence shows the close relationship between humans and chimpanzees? _____________
22. When the DNA sequence of a chimpanzee gene is compared to the same human gene, what do we see?
_____________________________________________________________________________________
23. Why is the DNA sequence of a rat so different from humans or chimpanzees? ____________________
______________________________________________________________________________________
24. What two primary types of evidence show us the relationship between humans and chimpanzees?
_____________________________ and ___________________________
Video 6: Why Does Evolution Matter Now? (6:20)
25. What is one reason evolution is so important today? _________________________________________
26. The deadly disease, Tuberculosis (TB), is caused by what kind of microbe? ________________
27. In Russia, some TB bacteria have become _______________________ to drugs.
28. TB can be spread through the ________ by coughing.
29. What does being diagnosed with “multi-drug resistant TB” mean? _____________________________
__________________________________________________________________________________
30. A) How do bacteria evolve to become resistant to drugs? _______________________________________
_____________________________________________________________________________________
B) What are 2 things people can do to slow the evolution of drug-resistant bacteria?
1.___________________________________________________________________________
2. ___________________________________________________________________________