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Ecology 2
Test Description: Climate, interactions
Instructions: Answer all questions to get your test result.
1) Only 10 percent of the energy stored in an organism can be passed on to the next trophic level. Of the remaining energy, some is used for the organism’s life processes, and the rest is
A
used in reproduction
B
stored as fat
C
stored in body tissue
D
eliminated as heat
2) The average year-after-year conditions of temperature and precipitation in a particular region are referred to as the region’s
A
ecosystem
B
latitude
C
climate
D
weather
3) All of the following factors contribute to Earth’s climate EXCEPT
A
longitude
B
latitude
C
shape and elevation of landmasses
D
transport of heat
4) Temperatures on Earth remain within a suitable range for life as we know it because of the
A
unequal heating of Earth
B
loss of heat to space
C
greenhouse effect
D
radiation of sunlight back into atmosphere
5) Each of the following is an abiotic factor in the environment EXCEPT
A
temperature
B
soil type
C
plant life
D
rainfall
6) Which is a biotic factor that affects the size of a population in a specific ecosystem?
A
average temperature of the ecosystem
B
concentration of oxygen in the ecosystem
C
type of soil in the ecosystem
D
number and kinds of predators in the ecosystem
7) An organism’s niche is
A
a full description of the place an organism lives
B
the range of temperatures that the organism needs to survive
C
all the physical and biological factors in the organism’s environment
D
the range of physical and biological conditions in which an organism lives and the way in which it uses those conditions
8) An interaction in which one organism captures and feeds on another organism is called
A
symbiosis
B
predation
C
mutualism
D
competition
9) Different species can share the same habitat, but competition among them is reduced if they
A
reproduce at different times
B
increase their population
C
occupy different niches
D
eat less
10) A symbiotic relationship in which both species benefit is
A
mutualism
B
predation
C
parasitism
D
commensalism
*select an answer for all questions
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