Unit Test — Unit test Answers

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Which of the following is not a strategy for improving the long-term health of cities?

A
restoring natural ecosystems
B
reducing pollution and waste
C
increasing automobile use
D
compact and efficient land use
42
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Which of the following statements about human society and limiting factors is true?

A
Modifications made to the environment to reduce the impact of limiting factors can cause disruption to the natural balance of an ecosystem.
B
Humans cannot modify their environment to adapt it to their needs.
C
Humans can completely overcome the factors that limit population size.
D
Limiting factors are of no concern to human society, because they do not affect human populations.
44

Which most directly describes a benefit of using DNA technology in medicine?

A
Medicine can be produced in mass quantities.
B
Medicine can be distributed at a reduced cost.
C
Medicines have fewer side effects.
D
Medicines are resistant to antibiotics.
45

Conservation efforts have resulted in restoration of some wildlife habitats.

A
T
B
F
46

Parkinson’s disease is a brain disorder that may be caused by mutations in several genes that code for the production of alpha-synuclein. Individuals who have Parkinson’s disease exhibit symptoms such as uncontrollable tremors, difficulty walking, and loss of coordination. How might geneticists determine where the mutations that cause Parkinson’s disease are located?

A
PCR analysis
B
gene mapping
C
DNA fingerprinting
D
STR analysis
47

Hunter-gatherer societies traditionally occupied the same territories year-round in order to care for their livestock.

A
T
B
F
48

It is important for _______ to participate in conservation efforts.

A
government
B
business
C
citizens
D
all of the above

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