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chaitanya.mehrotra
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Seemingly inconsequential changes in sea temperature due to global
warming eventually result in declines in fish and seabird populations. A rise
of just two degrees prevents the vertical mixing of seawater from different
strata. This restricts the availability of upwelling nutrients to phytoplankton.
Since zooplankton, which feed upon phytoplankton, feed the rest of
the food chain, the declines are inevitable.
Which of the following most accurately describes the role played in the argument by the statement that zooplankton feed upon phytoplankton ?
A. It is a hypothesis supported by the fact that phytoplankton feed on upwelling
nutrients.
B. It is intended to provide an example of the ways in which the vertical mixing
of seawater affects feeding habits.
C. It helps show how global temperature changes affect larger sea animals
directly.
D. It is offered as one reason that global warming must be curtailed.
E. It is offered in support of the idea that global warming poses a threat to all
organisms.
[spoiler]Doubt: Why is B wrong ? The argument infact shows how the vertical mixing of sea water indirectly affects the feeding habit of the chain ?
How is C correct ? Here argument is only speaking about fish & sea birds. Larger sea animals could include other sea animals as well ie whales etc ?[/spoiler]
warming eventually result in declines in fish and seabird populations. A rise
of just two degrees prevents the vertical mixing of seawater from different
strata. This restricts the availability of upwelling nutrients to phytoplankton.
Since zooplankton, which feed upon phytoplankton, feed the rest of
the food chain, the declines are inevitable.
Which of the following most accurately describes the role played in the argument by the statement that zooplankton feed upon phytoplankton ?
A. It is a hypothesis supported by the fact that phytoplankton feed on upwelling
nutrients.
B. It is intended to provide an example of the ways in which the vertical mixing
of seawater affects feeding habits.
C. It helps show how global temperature changes affect larger sea animals
directly.
D. It is offered as one reason that global warming must be curtailed.
E. It is offered in support of the idea that global warming poses a threat to all
organisms.
[spoiler]Doubt: Why is B wrong ? The argument infact shows how the vertical mixing of sea water indirectly affects the feeding habit of the chain ?
How is C correct ? Here argument is only speaking about fish & sea birds. Larger sea animals could include other sea animals as well ie whales etc ?[/spoiler]
