Open a word file and put your name, date, class period and title of the webquest. You will put all of your answers here and save it to your G drive when you are finished. When you are done, you will save your webquest answers to my jump drive.
1. At the bottom of the Evolution 101 page, click next topic.
What do we mean by the phrase, "descent with modification"?
2. Give three examples of change that happen through time, but are not considered evolution?
3. Click "Next Topic".
Read this and click "Next Topic".
On the "Family Tree" page, "zoom in" on animalia, then vertebrata.
Which of the three vertebrate clades do you think we belong to?
4. Click on "back to the tree of life".
Which of the three clades or "domains" do all animals belong to?
5. At the bottom of the "Family Tree" page, what new information found in the last 50 years has suggested a change was needed in some twigs of the family tree?
6. Click on "Next topic" to read through the Phylogenies pages 1 and 2. At the bottom of the phylogenies 2 page, click explore further.
What does a phylogenetic starburst usually mean?
7. Click "Next Topic". Read this page.
Correct this sentence, "A rose is "more advanced" than a fern."
8. Correct this sentence, "Humans evolved from chimpanzees."
9. Click "Next Topic".
Using the two trees on the "Building the tree" page, tell me if the following animals have four limbs:
a. Coelacanths,
b. Non-avian dinosaurs,
c. Marsupial mammals.
10. Click "Next Topic". Using the "Homologies and Analogies" page, give an example of analogous structures.
11. Are these examples of convergent or divergent evolution? Why?
12. When can bird wings and bat wings be considered homologous structures?
13. At the bottom of the "Homologies and Analogies" page click "Explore further: recognizing homologies".
Read through this page and click "Using Parsimony".
What are post-orbital fenestrae (Use that one at home!)? Do you have them?
14. Using the information on this page, answer the following three questions:
a. Do rodents have an amniote egg?
b. The "four-limbs" character developed between which two groups of vertebrates?
c. Based on the last diagram, it seems that a vertebrate with an amniote egg either has two post-orbital fenestrae or what?
15. What does the principle of parsimony state?
16. At the bottom, click on "Next topic". Why are scientists changing from the Linnean classification system to a phylogenetic system?
17. Give an example of a group of animals that fits one place according to the phylogenetic system and another according to the Linnean system.
18. Click "Next topic" at the bottom of the page. On this tree it only shows 500 million years of life, but it says that life has existed on earth for 3.5 billion years. What's missing from the diagram?
19. This is as far as I want to go for now. If you have more than ten minutes left in class, continue exploring from this page. Write down the main points of what you learned for extra credit. This can only be done if you have answered all of the above questions. If there is less than ten minutes left in class...
You are finished. Call me over to save your file on my jump drive.