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Ecology
Test Description: Review Ecology using this review game
Instructions: Answer all questions to get your test result.
1) Which type of organism can obtain energy directly from any of the other organisms in an ecosystem?
A
decomposer
B
carnivore
C
herbivore
D
producer
2) The carrying capacity for herbivores in a habitat is most directly affected by the availability of
A
heat energy released by carnivores
B
decomposers in the soil
C
photosynthetic organisms
D
carbon dioxide in the atmosphere
3) One advantage of biodiversity in an ecosystem is that it
A
develops relationships between organisms that are always positive over long periods of time
B
guarantees that the largest organisms will dominate the area
C
ensures a large amount of identical genetic material
D
increases the chance that some organisms will survive a major change in the environment
4) Abiotic factors that affect the growth of grass in a lawn include
A
fertilizer and decomposers
B
earthworms and nutrients
C
bacteria and soil
D
moisture and minerals
5) In 1960, an invasive species of fish was introduced into the stable ecosystem of a river. Since then, the population of a native fish species has declined. This is an example of an
A
ecological niche without competition
B
ecosystem that has recovered
C
ecosystem altered through the activities of an organism
D
environmental impact caused by physical factors
6) In an energy pyramid, the energy for use by organisms in first trophic level originally comes from
A
the Sun
B
level D
C
level B
D
producers
7) Which human activity would most likely deplete finite resources?
A
development of wildlife refuges
B
governmental restriction of industrial pollution
C
use of natural enemies to eliminate insect pests
D
uncontrolled population growth
8) The increasing demands for fossil fuels has led government to consider several possibilities to solve the energy crisis. Which solution will reduce the impact of this crisis?
A
build more power plants away from population centers
B
increase the number of drilling sites for crude oil in North America
C
limit the number of people in each vehicle
D
develop alternative fuel sources that can be produced from renewable resources
9) An organism that gets their food from other sources is called a(n)
A
heterotroph
B
autotroph
C
decomposer
D
fungi
10) Which organism is considered a producer?
A
cricket
B
grass
C
mountain lion
D
frog
*select an answer for all questions
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