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Unit 11 Ecology
Test Description: Review for 3rd Nine Weeks
Instructions: Answer all questions to get your test result.
1) Fish, their predators and the water, sunlight, and plants that they rely on would be considered a(n):
A
population
B
abiotic factor
C
ecosystem
D
community
2) Which of the following is NOT a characteristic of a living thing?
A
uses energy for metabolism
B
reproduces
C
contains cells
D
moves around
3) What is one biotic factor that affects the size of a population in an ecosystem?
A
local geography
B
average yearly temperature
C
average yearly precipitation
D
number of predators present
4) Organisms, such as plants or phytoplankton that carry out photosynthesis would cause a decrease of which gas in the atmosphere?
A
ozone
B
oxygen
C
water
D
carbon dioxide
5) Humans increase carbon dioxide in the atmosphere, and contribute to the carbon cycle by
A
combustion from driving cars
B
using more solar power electricity
C
conserving energy with alternative energies
D
planting trees to improve photosynthesis
6) Which biotic factor is required at all stages of the nitrogen cycle?
A
lightning
B
bacteria
C
plants
D
wind
7) When deforestation occurs in an area, what immediate effect does this have on the water cycle?
A
Less is returned to the air by transpiration.
B
More photosynthesis occurs and carbon dioxide begins decreasing.
C
More water is returned to the atmosphere by transpiration.
D
There is less runoff water, but more transpiration.
8) Which of the following is true of density-dependent limiting factors?
A
They have a larger impact on large density populations.
B
They impact large and small density populations equally.
C
They have a larger impact on small density populations.
D
They tend to be caused by abiotic factors.
9) What pattern of growth will a population with limited resources show?
A
logistic
B
density-dependent
C
density-independent
D
exponential
10) Conditions in the environment that impacts the size of the populations are called
A
habitats
B
populations
C
limiting factors
D
niches
*select an answer for all questions
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