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03 Aug 2015, 12:42
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Spotted deer have bright dots on their trunks, and the most common subspecies has the largest dots. The dots cannot serve as camouflage for these open-land grazers because they are too conspicuous. Therefore, these bright spots must have some other function. The dots must be important to the species, likely serving as a signal to other deer.
Which one of the following, if true, most strongly supports the conclusion regarding a signaling function?
A. Exceptional size and vigor also mark the subspecies of deer characterized by the most distinct dots.
B. Grazing animals with a uniform coat color may be more difficult to detect than spotted deer in some types of tall grass.
C. A temporary color change can easily be perceived by other members of the species, serving as a visual signal to other deer.
D. Deer respond much faster to moving shapes with dots than to identical shapes without dots.
E. Deer produce a greater variety of vocal signals than similar species, such as horses.
Which one of the following, if true, most strongly supports the conclusion regarding a signaling function?
A. Exceptional size and vigor also mark the subspecies of deer characterized by the most distinct dots.
B. Grazing animals with a uniform coat color may be more difficult to detect than spotted deer in some types of tall grass.
C. A temporary color change can easily be perceived by other members of the species, serving as a visual signal to other deer.
D. Deer respond much faster to moving shapes with dots than to identical shapes without dots.
E. Deer produce a greater variety of vocal signals than similar species, such as horses.
03 Aug 2015, 12:43
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Official Solution:
Spotted deer have bright dots on their trunks, and the most common subspecies has the largest dots. The dots cannot serve as camouflage for these open-land grazers because they are too conspicuous. Therefore, these bright spots must have some other function. The dots must be important to the species, likely serving as a signal to other deer.
Which one of the following, if true, most strongly supports the conclusion regarding a signaling function?
A. Exceptional size and vigor also mark the subspecies of deer characterized by the most distinct dots.
B. Grazing animals with a uniform coat color may be more difficult to detect than spotted deer in some types of tall grass.
C. A temporary color change can easily be perceived by other members of the species, serving as a visual signal to other deer.
D. Deer respond much faster to moving shapes with dots than to identical shapes without dots.
E. Deer produce a greater variety of vocal signals than similar species, such as horses.
Conclusion: The dots must therefore be of importance to the species as the spots must be acting as some sort of signal to the deer.
The correct option must somehow relate dots to the signaling aspect.
A. This option does not have bearing on the signaling aspect of the dots. It just states a correlation between the dots and the size and vigor.
B. This option does not have bearing on the signaling aspect of the dots. It deals with the camouflaging aspect, not the signaling aspect.
C. Change of color is related to the signaling aspect, but the correct option must relate the dots with the signaling aspect.
D. CORRECT. This option is able to connect the dots on deer to the signaling aspect. It clarifies that a moving object with dots can be perceived easily, thereby aiding the signaling to the other deer.
E. This option states similarity between horses and deer in terms of vocal signals. It does not relate dots to signaling aspect.
Answer: D
Spotted deer have bright dots on their trunks, and the most common subspecies has the largest dots. The dots cannot serve as camouflage for these open-land grazers because they are too conspicuous. Therefore, these bright spots must have some other function. The dots must be important to the species, likely serving as a signal to other deer.
Which one of the following, if true, most strongly supports the conclusion regarding a signaling function?
A. Exceptional size and vigor also mark the subspecies of deer characterized by the most distinct dots.
B. Grazing animals with a uniform coat color may be more difficult to detect than spotted deer in some types of tall grass.
C. A temporary color change can easily be perceived by other members of the species, serving as a visual signal to other deer.
D. Deer respond much faster to moving shapes with dots than to identical shapes without dots.
E. Deer produce a greater variety of vocal signals than similar species, such as horses.
Conclusion: The dots must therefore be of importance to the species as the spots must be acting as some sort of signal to the deer.
The correct option must somehow relate dots to the signaling aspect.
A. This option does not have bearing on the signaling aspect of the dots. It just states a correlation between the dots and the size and vigor.
B. This option does not have bearing on the signaling aspect of the dots. It deals with the camouflaging aspect, not the signaling aspect.
C. Change of color is related to the signaling aspect, but the correct option must relate the dots with the signaling aspect.
D. CORRECT. This option is able to connect the dots on deer to the signaling aspect. It clarifies that a moving object with dots can be perceived easily, thereby aiding the signaling to the other deer.
E. This option states similarity between horses and deer in terms of vocal signals. It does not relate dots to signaling aspect.
Answer: D
25 Mar 2022, 04:04
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The question or/and solution has been revised and edited. Thank you sayantanc2k !!!
