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