Test — Cumulative exam Answers

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Which of the following are examples of short-term, human-induced environmental changes? Select three answer choices. mass extinctionglobal warmingdeforestationozone layer destructionpollution

A
mass extinction
B
global warming
C
deforestation
D
ozone layer destruction
E
pollution
22
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Legumes, a type of plant, require Rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen. Rhizobia use the legumes for food. What would most likely happen to the legume population if Rhizobia suddenly became extinct?

A
become extinct
B
learn to fix nitrogen
C
benefit in the long run
D
stay the same
23

How has the EPA improved air quality over the last 30 years?

A
by monitoring pollutants and passing regulations to reduce air pollution
B
by decreasing soil erosion and dust storms
C
by building marine refuges to help protect marine life and reduce air pollution
D
by decreasing of fossil fuel use in motor vehicles and industry
24

eutrophicationhabitat destructionnonnative species introductiondeforestation

A
eutrophication
B
habitat destruction
C
nonnative species introduction
D
deforestation
25

When an insect touches the bristles on the lobes of a Venus flytrap, the lobes close quickly, engulfing the insect. The movement of the insect inside the lobes causes the flytrap to secrete digestive enzymes that kill the insect. Which type of relationship does this describe?

A
competition
B
parasitism
C
predation
D
commensalism

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