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AP Biology Exam Section 1 Part B

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AP Biology Exam Section 1 Part B

Allison December 17, 2017

AP Biology Exam Section 1 Part B

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Question 1 of 6

1. Question
Use the graph above to calculate the mean rate of population growth (individuals per day) between day 3 and day 5. Give your answer to the nearest whole number.
- a. 340 – 360
- b. 320 – 340
- c. 330 – 350
- d. 360 – 380
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Question 2 of 6

2. Question
In a certain species of flowering plant, the purple allele P is dominant to the yellow allele p.

A student performed a cross between a purple-flowered plant and a yellow-flowered plant. When planted, the 146 seeds that were produced from the cross matured into 87 plants with purple flowers and 59 plants with yellow flowers.
- a. 5.6 – 5.7
- b. 5.3 – 5.4
- c. 5.1 – 5.2
- d. 5.5 – 5.6
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Question 3 of 6

3. Question
What percent of the biomass in the forest community represented above is tied up in the shrub layer? Give your answer to the nearest whole number.
- a. 28 or 29
- b. 22 or 24
- c. 26 or 27
- d. 26 or 25
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Question 4 of 6

4. Question
In a population of certain frogs in which the allele for brown skin is dominant to the allele for green skin, a drought leads to selection against green-skinned frogs. When the drought ends, 12 percent of the remaining frogs exhibit the green-skin phenotype. If the population is now in Hardy-Weinberg equilibrium, what will be the frequency of the green-skin allele in the next generation? Provide your answer to the nearest hundredth.
- a. 0.25 – 0.35
- b. 0.35 – 0.36
- c. 0.34 – 0.35
- d. 0.28 – 0.29
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Question 5 of 6

5. Question
Use the graph above to calculate the lag time in months between the change in the densities of the prey and the predator populations. Give your answer to the nearest tenth of a month.
- a. Lag time varies from 1.4 to 1.7 months
- b. Lag time varies from 1.3 months to 1.6 months
- c. Lag time varies from 1.2 months to 1.5 months
- d. Lag time varies from 1.4 months to 1.8 months
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Question 6 of 6

6. Question
How much carbon is released into the atmosphere as a result of the metabolic activity of herbivores? Give your answer to the nearest whole number.
- a. 55
- b. 60
- c. 65
Correct

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AP Biology Exam Section 1 Part B

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