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T-4-24:T-733
It can be inferred from the passage that the females of all phocids species differ from the females of all otariid species in that the female phocids
A. have shorter lactation periods
B. consume more food during lactation
C. consume a higher proportion of fat stores
D. forage for food occasionally during their lactation periods
E. deplete a smaller percentage of their fat stores during their lactation periods T-4-25:T-7-34
The primary purpose of the passage is to
A. present evidence that several phocids species use the maternal fasting strategy
B. explain why the maternal strategy typically used by phocids is different from the maternal strategy used by otariids
C. argue that zoologists’ current understanding of harbor seals’ maternal strategy is incorrect
D. describe an unexpected behavior observed in harbor seals and propose an explanation that may account for the behavior
E. describe evidence concerning the maternal strategy of the harbor seal and suggest that the harbor seal belongs to the otariid rather than to the phocids family T-4-26:T-7-35
According to the passage, until recently zoologists believed which of the following about all phocids mothers?
A. Their fasting periods after giving birth were typically shorter than those of otariids.
B. Their lactation periods were generally as long as those of comparably sized otariids.
C. They acquired only moderate energy stores in the form of blubber before arriving at breeding sites.
D. They depleted less than a third of their stored body fat during lactation.
E. The replenished their fat stores only after their lactation period ended. T-4-27-T-7-36
The author of the passage mentions ringed seals most probably in order to
A. provide an example of a phocid species that fasts throughout its entire lactation period
B. provide an example of a phocid species whose maternal strategy is typical of phocid species
C. provide an example of a phocid species that may deplete an even higher proportion of its fat stores during lactation than harbor seals do
D. support the assertion that harbor seals are smaller than many other phocids
E. support the assertion that harbor seals’ maternal strategy may be related to their small size
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发表于 2008-5-25 22:35:00
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