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1. Four environmental factors are listed below.
A. energy
B. water
C. oxygen
D. minerals
Which factors limit environmental carrying capacity in a
land ecosystem?
A) A, only
C) A, C, and D, only
B) B, C, and D, only
D) A, B, C, and D
2. Changes in a deer population are shown in the graph below.
Which statement best explains section X?
A)
B)
C)
D)
The population has reached the carrying capacity of its environment.
Energy is used for interbreeding between members of different species.
A predator recycles the remains of dead organisms.
Competition does not occur between members of different species in the same habitat
3. One biotic factor that limits the carrying capacity of any
habitat is the
A)
B)
C)
D)
availability of water
level of atmospheric oxygen
activity of decomposers
amount of soil erosion
4. The carrying capacity of a given environment is least
dependent upon
A)
B)
C)
D)
recycling of materials
the available energy
the availability of food and water
daily temperature fluctuations
5. The graph below shows the growth of a population of
bacteria over a period of 80 hours.
Which statement best describes section II of the graph?
A) The population has reached the carrying capacity of
the environment.
B) The population is greater than the carrying capacity
of the environment.
C) The rate of reproduction is slower than in section I.
D) The rate of reproduction exceeds the death rate.
Answer Key
Population Dynamics II
1.
D
2.
A
3.
C
4.
D
5.
D