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Tuesday, March 19, 2013
Wednesday, March 13, 2013
Tuesday, March 12, 2013
sophomore bird beak activity 4th period
collect data
from the rest of the class, record the average yield for each prey and predator
|
Data Table 1b
|
Beak Types
Record Data on this Handout
|
|||||
|
Results
- Stations 1-5
|
scissors
|
chopsticks
|
clothespins
|
spoons
|
tweezers
|
|
|
Prey
Type |
pennies
|
4
|
2
|
1
|
6
|
4
|
|
|
small pebbles
|
4
|
3
|
1
|
12
|
8
|
|
|
Pipette tips
|
6
|
12
|
2
|
6
|
12
|
|
|
paper clips
|
9
|
8
|
3
|
7
|
13
|
|
|
foam peanuts
|
8
|
5
|
6
|
8
|
6
|
|
|
Split peas
|
3
|
3
|
2
|
8
|
7
|
|
Results -
Stations 1-5 |
Beak Types
Data Table 2b Record Data on this Handout
|
|||||
|
|
scissors
|
chopsticks
|
clothespins
|
spoons
|
tweezers
|
|
|
Prey
Type |
pennies
|
4
|
4
|
1
|
6
|
2
|
|
|
large pebbles
|
3
|
4
|
2
|
8
|
6
|
|
|
Pipette tips
|
5
|
13
|
3
|
6
|
11
|
|
|
paper clips
|
9
|
5
|
4
|
4
|
12
|
|
|
Split pea
|
5
|
7
|
1
|
6
|
8
|
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 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.
Sophomore bird Beak activity 2 period
|
Data Table 1b
|
Beak Types
Record Data on this Handout
|
|||||
|
Results
- Stations 1-5
|
scissors
|
chopsticks
|
clothespins
|
spoons
|
tweezers
|
|
|
Prey
Type |
pennies
|
3
|
2
|
5
|
7
|
11
|
|
|
small pebbles
|
5
|
4
|
2
|
15
|
11
|
|
|
Pipette tips
|
6
|
8
|
5
|
8
|
19
|
|
|
paper clips
|
6
|
3
|
3
|
7
|
14
|
|
|
foam peanuts
|
11
|
11
|
7
|
12
|
10
|
|
|
Split peas
|
6
|
1
|
7
|
18
|
12
|
|
Results -
Stations 1-5 |
Beak Types
Data Table 2b Record Data on this Handout
|
|||||
|
|
scissors
|
chopsticks
|
clothespins
|
spoons
|
tweezers
|
|
|
Prey
Type |
pennies
|
3
|
1
|
3
|
7
|
6
|
|
|
large pebbles
|
4
|
5
|
4
|
10
|
8
|
|
|
Pipette tips
|
8
|
7
|
4
|
8
|
14
|
|
|
paper clips
|
5
|
4
|
5
|
5
|
15
|
|
|
Split pea
|
6
|
5
|
15
|
10
|
17
|
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 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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