Monday, February 28, 2011
Earth sciance- Hw
Read ch 19 and take notes on Earthquakes and Tsunamis. Answer the following Questions using complete sentences: pg 504 Q3,4,5; pg 510 Q1,2,3; pg 515 Q 1,3
Beak activity
Complete the adata tables and analysis questions for this activity. Use complete sentences where applicable.
1st period data : average yield for each prey and predator
Results - Stations 1-5 | Beak Types Data Table 1b Record Data on this Handout | |||||
scissors | chopsticks | clothespins | spoons | tweezers | ||
Prey Type | pennies | 4 | 8 | 9 | 9 | 6 |
small pebbles | 6 | 6 | 8 | 8 | 9 | |
Pipette tips | 8 | 9 | 10 | 5 | 15 | |
paper clips | 11 | 5 | 9 | 5 | 13 | |
foam peanuts | 9 | 12 | 8 | 12 | 10 |
scissors | chopsticks | clothespins | spoons | tweezers | ||
Prey Type | pennies | 5 | 7 | 9 | 8 | 8 |
large pebbles | 4 | 5 | 6 | 12 | 8 | |
Pipette tips | 9 | 8 | 9 | 7 | 15 | |
paper clips | 8 | 5 | 13 | 8 | 13 |
2nd period data : the average yield for each prey and predator
Results - Stations 1-5 | Beak Types Data Table 1b Record Data on this Handout | |||||
scissors | chopsticks | clothespins | spoons | tweezers | ||
Prey Type | pennies | 5 | 4 | 5 | 6 | 7 |
small pebbles | 3 | 6 | 4 | 6 | 12 | |
Pipette tips | 5 | 9 | 4 | 6 | 15 | |
paper clips | 4 | 6 | 4 | 4 | 15 | |
foam peanuts | 8 | 13 | 7 | 8 | 11 |
scissors | chopsticks | clothespins | spoons | tweezers | ||
Prey Type | pennies | 6 | 5 | 8 | 6 | 7 |
large pebbles | 1 | 5 | 7 | 10 | 11 | |
Pipette tips | 4 | 8 | 7 | 7 | 18 | |
paper clips | 7 | 7 | 5 | 5 | 18 |
3rd period data : average yield for each prey and predator
Results - Stations 1-5 | Beak Types Data Table 1b Record Data on this Handout | |||||
scissors | chopsticks | clothespins | spoons | tweezers | ||
Prey Type | pennies | 3 | 1 | 1 | 6 | 6 |
small pebbles | 3 | 3 | 5 | 10 | 14 | |
Pipette tips | 4 | 7 | 6 | 7 | 14 | |
paper clips | 6 | 1 | 7 | 7 | 14 | |
foam peanuts | 9 | 9 | 6 | 10 | 11 |
scissors | chopsticks | clothespins | spoons | tweezers | ||
Prey Type | pennies | 2 | 2 | 2 | 8 | 7 |
large pebbles | 3 | 4 | 5 | 12 | 9 | |
Pipette tips | 5 | 9 | 5 | 7 | 17 | |
paper clips | 7 | 3 | 6 | 6 | 12 |
4th period data : average yield for each prey and predator
Results - Stations 1-5 | Beak Types Data Table 1b Record Data on this Handout | |||||
scissors | chopsticks | clothespins | spoons | tweezers | ||
Prey Type | pennies | 4 | 2 | 2 | 21 | 6 |
small pebbles | 4 | 4 | 4 | 9 | 14 | |
Pipette tips | 4 | 9 | 5 | 13 | 17 | |
paper clips | 4 | 5 | 7 | 9 | 23 | |
foam peanuts | 9 | 14 | 4 | 13 | 11 |
9
scissors | chopsticks | clothespins | spoons | tweezers | ||
Prey Type | pennies | 4 | 4 | 2 | 22 | 8 |
large pebbles | 2 | 4 | 3 | 50 | 14 | |
Pipette tips | 6 | 10 | 6 | 11 | 31 | |
paper clips | 9 | 6 | 7 | 9 | 19 |
Answer the following questions. Use a separate sheet of paper that you will attach to the group data tables
Part 1
- Which prey items were preferred (highest yield) by more than one predator?
- Could all of these predators coexist in a single habitat? Why or why not?
- What happened when resources became limited?
- Which predators (beak types) would have survived and likely reproduced more?
- Is there a predator in this environment that would have been selected against?
Part 2
- How did the change in environment affect the birds?
- What types of resources (not from activity, real world) can be limited in an environment? List five examples.
- Were particular birds adversely affected?
- Did any group of birds do better in this new wet environment? If so, which ones?
- Which birds would likely have more offspring?
- Is the effect on the survival and reproduction of these birds an example of natural selection or artificial selection? How are they different?
- Does natural selection operate on individuals or populations? Explain.
- Can an individual member of a species evolve? Explain.
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