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BIO 172 Exam 3 Pre-Questions With Complete Solutions
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BIO 172 Exam 3 Pre-Questions With Complete Solutions
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BIO 172 Exam 3 Pre-Questions With Complete SolutionsA duck reproduces by
A. viviparity
B. ovoviparity
C. oviparity
D. spawning
E. external fertilization Correct Answer C. oviparity
A neuron's resting membrane potential
A. is the maximum amount of time that a neuron can stay
dormant
B. is the change in electrical potential that would be realized if a
neuron were to become inactivated
C. is the electrical potential of a neuron that is not transmitting a
signal or being stimulated
D. is the amount of stimulation required to activate a neuron
E. will be a positive electrical potential Correct Answer C. is
the electrical potential of a neuron that is not transmitting a
signal or being stimulated
A researcher who studies nutrient cycling in a pond would be
best described as studying
A. population ecology
B. organismal ecology
C. community ecology
D. ecosystem ecology
E. conservation biology Correct Answer D. ecosystem ecology
A spermatheca
,A. Is a component of the male reproductive system used to
create male gametes
B. Is a component of the male reproductive system used to store
male gametes
C. Is a component of the male reproductive system used to sort
viable male gametes from non-viable male gametes
D. Is a component of the male reproductive system used to
deliver male gametes to females
E. Is a component of the female reproductive system used to
store male gametes Correct Answer E. Is a component of the
female reproductive system used to store male gametes
A violent blow to which part of the human head would be most
likely to cause visual impairment?
A. front (forehead)
B. top
C. back
D. left side
E. right side Correct Answer C. back
According to researcher Kelly Lambert who authored this study,
the results are consistent with the view that
A. rats lack neuroplasticity but instead learn through hormonal
plasticity
B. most animals are smarter, in unique ways, than we think
C. rats have the potential to dominate over humans as they learn
to master human technologies
D. rats are smarter than most other animals
E. none of the above Correct Answer B. most animals are
smarter, in unique ways, than we think
,According to the article, about how long does it take Amazon
forest to recover after a fire?
A. around 3 years
B. around 10 years
C. around 100 years
D. around 500 years
E. Scientists don't know Correct Answer E. Scientists don't
know
According to the article, burning that removes intact trees in the
Amazon will
A. increase seed germination on the forest floor
B. increase drying, potentially promoting transformation of
burned rainforest to savanna
C. increase the abundance of dung beetles, which act as seed
predators reducing seedling diversity
D. promote the spread of vines that may smother remaining
vegetation.
E. none of the above Correct Answer B. increase drying,
potentially promoting transformation of burned rainforest to
savanna
According to the article, desertification has major effects on
people by
A. causing crops to ripen more quickly, leading to spoilage of
food
B. increasing winds, which has forced adoption of dust masks
and other face coverings
C. causing heat waves that have killed many villagers
D. forcing over 50 million people to migrate to new areas
, E. causing the death of at least 100 million cattle, leading to a
shortage of beef Correct Answer D. forcing over 50 million
people to migrate to new areas
According to the article, how could warming in the Arctic
dramatically increase carbon dioxide in Earth's atmosphere?
A. As the Arctic becomes warmer, the human population there
will grow, increasing the amount of fossil fuels being used by
industries there
B. As the Arctic becomes warmer, ice will melt and flow into
the sea, and the mixing of freshwater with sea water will
transform carbonate buffers in sea water into carbon dioxide
C. As the Arctic becomes warmer, vegetation there will grow
more slowly, leading to less oxygen production by plants which
in turn will cause a change in plant metabolism that leads to
more carbon dioxide production to compensate for less oxygen
production
D. As the Arctic becomes warmer, caribou will continue to die.
As their carcasses build up, decomposition of their bodes leads
to the release of tremendous quantities of carbon dioxide into the
atmosphere
E. As the Arctic becomes Correct Answer E. As the Arctic
becomes warmer, permafrost will melt, leading to increased
microbial growth and decomposition, releasing into the
atmosphere carbon that is stored in layers of permafrost
According to the article, in a coral, which of the following
occurs when its symbiotic algae are rejected?
A. acidification
B. detatchment
C. shrinkage
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