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AP Biology Ecology Main Exam with Questions and 100% Correct Solutions
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  • AP Biology
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  • AP Biology

. Which of the following is NOT true regarding factors that affect the dispersion of organisms in nature? A. Most environmental resources are randomly distributed. B. Biological conditions tend to be non-uniform. C. Dispersal of offspring is often limited or controlled by environmental factor...

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  • August 28, 2024
  • 70
  • 2024/2025
  • Exam (elaborations)
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  • ap biology ecology main exam with questions and 10

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  • AP Biology
  • AP Biology

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AP Biology Ecology Main Exam with
Questions and 100% Correct Solutions
1. Which of the following is NOT true regarding factors that affect the dispersion of
organisms in nature?


A. Most environmental resources are randomly
distributed.


B. Biological conditions tend to be non-uniform.


C. Dispersal of offspring is often limited or controlled
by environmental factors.


D. The development of societies in some populations

controls distribution.



E. Every species is adapted to specific environmental conditions. - ✔A. Most
environmental resources are randomly distributed.



2. Which of the following provides a chicken rancher using a free-roaming arrangement for
his flock the data necessary to ensure maximum survival of his hens?


A. distribution of chickens throughout the range


B. total number of chickens


C. chickens per square foot of the range

,D. total square footage of the range



E. crude density of the chicken population - ✔A.Distribution of chickens throughout the range


3. Which of the following is NOT true regarding population counts?


A. A full population count is usually impractical.


B. Ecologists estimate a population's total density from a sample of the population.


C. Sampling within quadrats is particularly useful for most populations of migrating animals.


D. A full population count is possible for large animals in small areas.



E. Capture-recapture methods are used to estimate the population's size of species that do not
"stay put. - ✔C. Sampling within quadrats is particularly useful for most populations of
migrating animals.


4. The accuracy of the capture-recapture methods depends on all of the following EXCEPT that


A. marked individuals are recaptured at random.


B. unmarked individuals are captured at random.


C. none of the marked individuals are overlooked.


D. no marked individual dies or departs during the study.

,E. no new individuals are produced during the study. - ✔E. No new individuals are
produced during the study.



5. If K (carrying capacity) for a population is 1,200, and r =0.1, which of the following
populations will show the greatest increase over the course of one year assuming
exponential growth?


A.N=100


B.N=200


C.N=300


D.N=700



E. N = 900 - ✔E. N= 900


6. Which of the following is NOT true regarding biotic potential? It


A. varies from one species to another.


B. is related to the timing of the first reproduction.


C. is related to the frequency of reproduction.


D. is related to the number of offspring produced.

, E. increases as population density increases. - ✔E. Increases as population density increases


7. If a population has an r = 0.02, which of the following statements must be true?


A. Two of every 100 individuals will give birth over the course of a year.



B. Two individuals will be born for every 100 individuals in the population over the course of
a year.


C. Births will exceed deaths by 2 percent over the course of a year.



D. The number of individuals added to the population will be 2 percent greater than the
number of individuals removed from the population over the course of a year.



E. None of these are true. - ✔E. None of these are true


8. Which of the following is NOT true for a population growing exponentially?



A. The number of individuals added to the population in a year is greater than it was
the previous year.


B. The population growth rate increases year after year.


C. Its r remains constant in the short-run.


D. The doubling time remains constant.



E. All of these are NOT true. - ✔D. The doubling time remains constant

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