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
  1. Which prey items were preferred (highest yield) by more than one predator?
  2. Could all of these predators coexist in a single habitat? Why or why not?
  3. What happened when resources became limited?
  4. Which predators (beak types) would have survived and likely reproduced more?
  5. Is there a predator in this environment that would have been selected against?
Part 2
  1. How did the change in environment affect the birds?
  2. What types of resources (not from activity, real world) can be limited in an environment? List five examples.
  3. Were particular birds adversely affected?
  4. Did any group of birds do better in this new wet environment?  If so, which ones?
  5. Which birds would likely have more offspring?
  6. Is the effect on the survival and reproduction of these birds an example of natural selection or artificial selection? How are they different?
  7. Does natural selection operate on individuals or populations? Explain.
  8. Can an individual member of a species evolve? Explain.