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Section 1.3
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1
Cellular respiration…
A)consumes carbon dioxide and produces oxygen.
B)consumes oxygen and produces carbon dioxide.
C)consumes phosphorus and produces carbon dioxide.
D)consumes carbon dioxide and produces nitrogen.
2
Which of the following organisms are able to perform cellular respiration to extract energy from glucose?
A)animals only
B)plants only
C)fungi and plants
D)animals, fungi, and plants
3
Greenhouse gases…
A)prevent heat from leaving the atmosphere, causing an increase in atmospheric temperature.
B)allow heat to leave the atmosphere, causing a decrease in atmospheric temperature.
C)allow heat to leave the atmosphere, causing no change to the atmospheric temperature levels.
D)prevent heat from leaving the hydrosphere, causing an increase in atmospheric temperature.
4
Scientists hypothesize that the main cause of global warming is…
A)decreased carbon dioxide levels in the atmosphere.
B)increased levels of methane in the atmosphere.
C)increased levels of oxygen and decreased levels of carbon dioxide in the atmosphere.
D)increased levels of carbon dioxide and methane in the atmosphere.
5
What might occur in an ecosystem that is continually exposed to acid precipitation?
A)Aquatic environments will have increased pH levels.
B)Aquatic environments will become neutralized.
C)Forest ecosystems will lose calcium from the soil.
D)Forest ecosystems will lose aluminum from the soil.





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