Birds Need so much Food Energy to Maintain their Body Temperatures GMAT Critical Reasoning

Question: Birds need so much food energy to maintain their body temperatures that some of them spend most of their time eating. But a comparison of a bird of a seed-eating species to a bird of a nectar-eating species that has the same overall energy requirement would surely show that the seed-eating bird spends more time eating than does the nectar-eating bird, since a given amount of nectar provides more energy than does the same amount of seeds

The argument relies on which one of the following questionable assumptions

(A) Birds of different species do not generally have the same overall energy requirements as each other
(B) The nectar-eating bird does not sometimes also eat seeds
(C) The time it takes for the nectar-eating bird to eat a given amount of nectar is not longer than the time it takes the seed-eating bird to eat the same amount of seeds
(D) The seed-eating bird does not have a lower body temperature than that of the nectar-eating bird
(E) The overall energy requirements of a given bird do not depend on factors such as the size of the bird, its nest-building habits; and the climate of the region in which it lives

“Birds need so much food energy to maintain their body temperatures that some of them spend most of their time eating” – is a  GMAT Critical question. To answer the question, a candidate can either find a piece of evidence that would weaken the argument or have logical flaws in the argument. GMAT critical reasoning tests the logical and analytical skills of the candidates. This topic requires candidates to find the argument's strengths and weaknesses or the logical flaw in the argument. The GMAT CR section contains 10 -13 GMAT critical reasoning questions out of 36 GMAT verbal questions.

Answer: C
Solution and Explanation:
Explanation:

The GMAT's critical reasoning section tests candidates' capacity for critical thought and analytical reasoning. To produce a cogent response, the candidate needs to possess high cognitive ability.

Some birds spend the majority of their time eating because they require so much food energy to keep their body temperatures stable.

Mifune, a bird of a species that consumes seeds, and Rossi, a bird of a species that consumes nectar. They were compared and found to have the same overall energy needs, it would be evident that Mifune spends more time eating than Rossi. This is because the same amount of nectar provides more energy than the same amount of seeds.

Let's look at each option separately.

A: Inaccurate

It is not the correct choice. While we have specific cases with the same requirements, this is a general situation.

B: Inaccurate

It is not the correct choice. It is not always possible to generalise something to apply to all situations.

This cannot be presumed to be the case.

C:Correct

It is the correct choice. This is inline with our assumption above.

D: Inaccurate

It is not the best option. The issue with option D is that we are unsure of how quickly body temperature would rise in response to calorie intake.

E: Inaccurate

E is an incorrect choice. This statement doesn't need to be assumed because its negation has no bearing on the result. Its eating behaviour, length, and amount are unaffected by the overall energy dependence on any factor.

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