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Marine biologists have long thought that variation in the shell color of aquatic snails evolved as a protective camouflage against birds and other predators. Brown shells seem to be more frequent when the underlying seafloor is dark-colored and white shells more frequent when the underlying seafloor is light-colored. A new theory has been advanced, however, that claims that shell color is related to physiological stress associated with heat absorption. According to this theory, brown shells will be more prevalent in areas where the wave action of the sea is great and thus heat absorption from the Sun is minimized, whereas white shells will be more numerous in calmer waters where the snails will absorb more heat from the Sun’s rays.
Evidence that would strongly favor the new theory over the traditional theory would be the discovery of a large majority of
  • a)
    dark-shelled snails in a calm inlet with a dark, rocky bottom and many predators
  • b)
    dark-shelled snails in a calm inlet with a white, sandy bottom
  • c)
    light-shelled snails in an inlet with much wave action and a dark, rocky bottom
  • d)
    light-shelled snails in a calm inlet with a dark, rocky bottom and many predators
  • e)
    light-shelled snails in a calm inlet with a white, sandy bottom and many predators
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Marine biologists have long thought that variation in the shell color ...
This is essentially a suppressed premise question; we are asked to supply a premise (evidence) that would favor the new theory over the traditional theory. The old theory predicts that if there are predators in an area then the shells should have the same color as the seafloor. The new theory, based on heat absorption, predicts that 1) brown shells will be more prevalent in rough waters, and 2) white shells will be more numerous in calm waters. Now we work through the answer-choices, looking for one that contradicts our summary of the old theory and supports our summary of the new theory.
Choice (A) has predators, a dark seafloor, and, as the old theory predicts, dark-shelled snails. It thus supports the old theory. Additionally, it has dark shells in calm waters which contradicts the new theory. Eliminate (A).
Next, choice (B) contradicts 2) of the new theory. Eliminate (B).
Next, choice (C) contradicts 1) of the new theory. Eliminate (C).
Next, choice (D) satisfies 2) of the new theory—light-shelled snails in calm waters. It also directly contradicts the old theory, which predicts that with many predators and a dark bottom the shells should be dark. So the answer is probably (D), but it’s prudent to check the last choice since we are looking for the best answer.
Choice (E) satisfies 2) of the new theory, but it also satisfies the old theory, which predicts that with many predators and a light bottom the shells should be light. Eliminate (E).
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Marine biologists have long thought that variation in the shell color of aquatic snails evolved as a protective camouflage against birds and other predators. Brown shells seem to be more frequent when the underlying seafloor is dark-colored and white shells more frequent when the underlying seafloor is light-colored. A new theory has been advanced, however, that claims that shell color is related to physiological stress associated with heat absorption. According to this theory, brown shells will be more prevalent in areas where the wave action of the sea is great and thus heat absorption from the Sun is minimized, whereas white shells will be more numerous in calmer waters where the snails will absorb more heat from the Sun’s rays.Evidence that would strongly favor the new theory over the traditional theory would be the discovery of a large majority ofa)dark-shelled snails in a calm inlet with a dark, rocky bottom and many predatorsb)dark-shelled snails in a calm inlet with a white, sandy bottomc)light-shelled snails in an inlet with much wave action and a dark, rocky bottomd)light-shelled snails in a calm inlet with a dark, rocky bottom and many predatorse)light-shelled snails in a calm inlet with a white, sandy bottom and many predatorsCorrect answer is option 'D'. Can you explain this answer?
Question Description
Marine biologists have long thought that variation in the shell color of aquatic snails evolved as a protective camouflage against birds and other predators. Brown shells seem to be more frequent when the underlying seafloor is dark-colored and white shells more frequent when the underlying seafloor is light-colored. A new theory has been advanced, however, that claims that shell color is related to physiological stress associated with heat absorption. According to this theory, brown shells will be more prevalent in areas where the wave action of the sea is great and thus heat absorption from the Sun is minimized, whereas white shells will be more numerous in calmer waters where the snails will absorb more heat from the Sun’s rays.Evidence that would strongly favor the new theory over the traditional theory would be the discovery of a large majority ofa)dark-shelled snails in a calm inlet with a dark, rocky bottom and many predatorsb)dark-shelled snails in a calm inlet with a white, sandy bottomc)light-shelled snails in an inlet with much wave action and a dark, rocky bottomd)light-shelled snails in a calm inlet with a dark, rocky bottom and many predatorse)light-shelled snails in a calm inlet with a white, sandy bottom and many predatorsCorrect answer is option 'D'. Can you explain this answer? for GMAT 2024 is part of GMAT preparation. The Question and answers have been prepared according to the GMAT exam syllabus. Information about Marine biologists have long thought that variation in the shell color of aquatic snails evolved as a protective camouflage against birds and other predators. Brown shells seem to be more frequent when the underlying seafloor is dark-colored and white shells more frequent when the underlying seafloor is light-colored. A new theory has been advanced, however, that claims that shell color is related to physiological stress associated with heat absorption. According to this theory, brown shells will be more prevalent in areas where the wave action of the sea is great and thus heat absorption from the Sun is minimized, whereas white shells will be more numerous in calmer waters where the snails will absorb more heat from the Sun’s rays.Evidence that would strongly favor the new theory over the traditional theory would be the discovery of a large majority ofa)dark-shelled snails in a calm inlet with a dark, rocky bottom and many predatorsb)dark-shelled snails in a calm inlet with a white, sandy bottomc)light-shelled snails in an inlet with much wave action and a dark, rocky bottomd)light-shelled snails in a calm inlet with a dark, rocky bottom and many predatorse)light-shelled snails in a calm inlet with a white, sandy bottom and many predatorsCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for GMAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Marine biologists have long thought that variation in the shell color of aquatic snails evolved as a protective camouflage against birds and other predators. Brown shells seem to be more frequent when the underlying seafloor is dark-colored and white shells more frequent when the underlying seafloor is light-colored. A new theory has been advanced, however, that claims that shell color is related to physiological stress associated with heat absorption. According to this theory, brown shells will be more prevalent in areas where the wave action of the sea is great and thus heat absorption from the Sun is minimized, whereas white shells will be more numerous in calmer waters where the snails will absorb more heat from the Sun’s rays.Evidence that would strongly favor the new theory over the traditional theory would be the discovery of a large majority ofa)dark-shelled snails in a calm inlet with a dark, rocky bottom and many predatorsb)dark-shelled snails in a calm inlet with a white, sandy bottomc)light-shelled snails in an inlet with much wave action and a dark, rocky bottomd)light-shelled snails in a calm inlet with a dark, rocky bottom and many predatorse)light-shelled snails in a calm inlet with a white, sandy bottom and many predatorsCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Marine biologists have long thought that variation in the shell color of aquatic snails evolved as a protective camouflage against birds and other predators. Brown shells seem to be more frequent when the underlying seafloor is dark-colored and white shells more frequent when the underlying seafloor is light-colored. A new theory has been advanced, however, that claims that shell color is related to physiological stress associated with heat absorption. According to this theory, brown shells will be more prevalent in areas where the wave action of the sea is great and thus heat absorption from the Sun is minimized, whereas white shells will be more numerous in calmer waters where the snails will absorb more heat from the Sun’s rays.Evidence that would strongly favor the new theory over the traditional theory would be the discovery of a large majority ofa)dark-shelled snails in a calm inlet with a dark, rocky bottom and many predatorsb)dark-shelled snails in a calm inlet with a white, sandy bottomc)light-shelled snails in an inlet with much wave action and a dark, rocky bottomd)light-shelled snails in a calm inlet with a dark, rocky bottom and many predatorse)light-shelled snails in a calm inlet with a white, sandy bottom and many predatorsCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for GMAT. Download more important topics, notes, lectures and mock test series for GMAT Exam by signing up for free.
Here you can find the meaning of Marine biologists have long thought that variation in the shell color of aquatic snails evolved as a protective camouflage against birds and other predators. Brown shells seem to be more frequent when the underlying seafloor is dark-colored and white shells more frequent when the underlying seafloor is light-colored. A new theory has been advanced, however, that claims that shell color is related to physiological stress associated with heat absorption. According to this theory, brown shells will be more prevalent in areas where the wave action of the sea is great and thus heat absorption from the Sun is minimized, whereas white shells will be more numerous in calmer waters where the snails will absorb more heat from the Sun’s rays.Evidence that would strongly favor the new theory over the traditional theory would be the discovery of a large majority ofa)dark-shelled snails in a calm inlet with a dark, rocky bottom and many predatorsb)dark-shelled snails in a calm inlet with a white, sandy bottomc)light-shelled snails in an inlet with much wave action and a dark, rocky bottomd)light-shelled snails in a calm inlet with a dark, rocky bottom and many predatorse)light-shelled snails in a calm inlet with a white, sandy bottom and many predatorsCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Marine biologists have long thought that variation in the shell color of aquatic snails evolved as a protective camouflage against birds and other predators. Brown shells seem to be more frequent when the underlying seafloor is dark-colored and white shells more frequent when the underlying seafloor is light-colored. A new theory has been advanced, however, that claims that shell color is related to physiological stress associated with heat absorption. According to this theory, brown shells will be more prevalent in areas where the wave action of the sea is great and thus heat absorption from the Sun is minimized, whereas white shells will be more numerous in calmer waters where the snails will absorb more heat from the Sun’s rays.Evidence that would strongly favor the new theory over the traditional theory would be the discovery of a large majority ofa)dark-shelled snails in a calm inlet with a dark, rocky bottom and many predatorsb)dark-shelled snails in a calm inlet with a white, sandy bottomc)light-shelled snails in an inlet with much wave action and a dark, rocky bottomd)light-shelled snails in a calm inlet with a dark, rocky bottom and many predatorse)light-shelled snails in a calm inlet with a white, sandy bottom and many predatorsCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Marine biologists have long thought that variation in the shell color of aquatic snails evolved as a protective camouflage against birds and other predators. Brown shells seem to be more frequent when the underlying seafloor is dark-colored and white shells more frequent when the underlying seafloor is light-colored. A new theory has been advanced, however, that claims that shell color is related to physiological stress associated with heat absorption. According to this theory, brown shells will be more prevalent in areas where the wave action of the sea is great and thus heat absorption from the Sun is minimized, whereas white shells will be more numerous in calmer waters where the snails will absorb more heat from the Sun’s rays.Evidence that would strongly favor the new theory over the traditional theory would be the discovery of a large majority ofa)dark-shelled snails in a calm inlet with a dark, rocky bottom and many predatorsb)dark-shelled snails in a calm inlet with a white, sandy bottomc)light-shelled snails in an inlet with much wave action and a dark, rocky bottomd)light-shelled snails in a calm inlet with a dark, rocky bottom and many predatorse)light-shelled snails in a calm inlet with a white, sandy bottom and many predatorsCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Marine biologists have long thought that variation in the shell color of aquatic snails evolved as a protective camouflage against birds and other predators. Brown shells seem to be more frequent when the underlying seafloor is dark-colored and white shells more frequent when the underlying seafloor is light-colored. A new theory has been advanced, however, that claims that shell color is related to physiological stress associated with heat absorption. According to this theory, brown shells will be more prevalent in areas where the wave action of the sea is great and thus heat absorption from the Sun is minimized, whereas white shells will be more numerous in calmer waters where the snails will absorb more heat from the Sun’s rays.Evidence that would strongly favor the new theory over the traditional theory would be the discovery of a large majority ofa)dark-shelled snails in a calm inlet with a dark, rocky bottom and many predatorsb)dark-shelled snails in a calm inlet with a white, sandy bottomc)light-shelled snails in an inlet with much wave action and a dark, rocky bottomd)light-shelled snails in a calm inlet with a dark, rocky bottom and many predatorse)light-shelled snails in a calm inlet with a white, sandy bottom and many predatorsCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Marine biologists have long thought that variation in the shell color of aquatic snails evolved as a protective camouflage against birds and other predators. Brown shells seem to be more frequent when the underlying seafloor is dark-colored and white shells more frequent when the underlying seafloor is light-colored. A new theory has been advanced, however, that claims that shell color is related to physiological stress associated with heat absorption. According to this theory, brown shells will be more prevalent in areas where the wave action of the sea is great and thus heat absorption from the Sun is minimized, whereas white shells will be more numerous in calmer waters where the snails will absorb more heat from the Sun’s rays.Evidence that would strongly favor the new theory over the traditional theory would be the discovery of a large majority ofa)dark-shelled snails in a calm inlet with a dark, rocky bottom and many predatorsb)dark-shelled snails in a calm inlet with a white, sandy bottomc)light-shelled snails in an inlet with much wave action and a dark, rocky bottomd)light-shelled snails in a calm inlet with a dark, rocky bottom and many predatorse)light-shelled snails in a calm inlet with a white, sandy bottom and many predatorsCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice GMAT tests.
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