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How Ecosystem Work
Test Description: Quiz Review
Instructions: Answer all questions to get your test result.
1) Gas makes up our atmosphere but can be used by plants only when transformed by bacteria first
A
hydrogen
B
carbon dioxide
C
oxygen
D
nitrogen
2) Describe the relationship between photosynthesis and cellular respiration
A
they are each performed by producers
B
they both include the product oxygen
C
they both include sunlight as an engry
D
they are inversely proportional
3) Nitrogen-fixing bacteria convert atmospheric nitrogen into
A
glucose
B
nitrous oxide
C
ammonia
D
phosphate
4) The highest organism on the food chain
A
ominvore
B
herbivores
C
carnivore
D
decomposer
5) If an insect eats a plant and a bird eats the insect, about how much energy from the plant is stored in the insect for the bird to use?
A
1%
B
.1%
C
10 %
D
100%
6) Growth of plants after a forest fire is an example of
A
Old-Field succession
B
Pioneer Species
C
Primary Succession
D
Secondary Succession
7) Most of the Earth's carbon is secured in
A
ammonia
B
glucose
C
limestone
D
fossil fuels
8) Excessive algae growth in freshwater ecosystems is a direct result of
A
nitrogen cycle
B
acid precipitation
C
global warming
D
fertilizer overusage
9) Which organisms are most likely to arise in areas experiencing primary succession?
A
gymnosperms
B
lichens
C
mosses
D
angiosperms
10) The process of breaking down food to yield energy is called
A
cellular reproduction
B
cellular respiration
C
photosynthesis
D
chemosynthesis
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