Lab 2 - Mechanisms of Evolution Worksheet PDF

Preview

Summary

Lab assignment on evolutionary mechanisms...

Description

NAME: _________________________ ANT2511L Introduction to Physical Anthropology and Prehistory Lab Lab 2 Worksheet Mechanisms of Evolution Station 1: History of Evolution 1) What is Aristotle’s notion of progressive evolution (similar in form to a ladder) called? ___________________________________

2) Carolus Linnaeus developed a standardized method of naming known as what? ___________________________________

3) What is the genus species name for modern Humans? ______________________________

4) Compared to what we know about natural selection, what is incorrect with the Lamarkian theory of inheriting acquired characteristics?

5) Define Uniformitarianism: _____________________________________________________________________________

______________________________________________________________________________

Station 2: Natural Selection (may be done with a partner) Part A Place and mix 15 (of each) black, lima, and pinto beans onto the White construction paper. Close your eyes; open your eyes and grab the first beans that you see. Repeat this process 8 times and record you findings. Then repeat this entire process on the Black construction paper. Beans # Black Beans # Black Beans Removed # Black Beans Remain # Lima Beans # Lima Beans Removed # Lima Beans Remain # Pinto Beans # Pinto Beans Removed # Pinto Beans Remain

White Paper 15

Black Paper 15

15

15

15

15

Part B Think of yourself as a predator, removing prey from an environment and answer the following questions: 1. On the white background, which bean "survived" best? Which bean "survived" the worst? Why do you think this happened?

2. On the black background, which bean "survived" best? Which bean "survived" the worst? Why do you think this happened?

2

3. How does this activity simulate the process of selection? Which mode of selection is being demonstrated?

4. If you continued this process (and the overall population number was maintained) what would eventually happen to the overall ratio of beans?

Station 3: Forces of Evolution 1. What are two forces other than sexual reproduction that can alter gene frequencies? ________________________________ and _________________________________ 2. At this station, there is a jar with 60 beads. 30 are green and 30 blue. Without looking into the jar, draw out 20 beads. How many green beads did you draw? ______________________________ How many blue beads did you draw? ______________________________ Is this a different frequency of green to blue from what was originally in the jar? _________________________________________________________________________

3. What two forces does this experiment demonstrate? ____________________________________ and _________________________________

4. How does this activity differ from Station 2?

3...