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# When a caterpillar emerges from the egg on a tree branch, it

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When a caterpillar emerges from the egg on a tree branch, it [#permalink]

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10 May 2008, 19:05
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Difficulty:

5% (low)

Question Stats:

91% (01:38) correct 9% (01:54) wrong based on 172 sessions

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33.
When a caterpillar emerges from the egg on a tree branch, it immediately climbs upward until it finds a leaf bud to eat. Biologists thought that this behavior displayed an innate tendency to move in the direction opposite to the pull of gravity. In a recent experiment, a strong light source was placed at the bottom of a tree, and caterpillars, after hatching, climbed downward.
Which of the following hypotheses is best supported by the statements given?

(A) Caterpillars have an innate tendency to move in the direction of gravity.
(B) Newly hatched caterpillars are unable to see in the dark.
(C) Newly hatched caterpillars move towards the strongest light source in the environment.
(D) Newly hatched caterpillars move toward the leaf bud nearest to them.
(E) The eyes of newly hatched caterpillars become less sensitive to light over time.
[Reveal] Spoiler: OA

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Re: When a caterpillar emerges from the egg on a tree branch, it [#permalink]

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10 May 2008, 19:09
C looks fine.
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Re: When a caterpillar emerges from the egg on a tree branch, it [#permalink]

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10 May 2008, 20:21
Is there something that I missed in the question ?
It looks like an easy C.
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Re: When a caterpillar emerges from the egg on a tree branch, it [#permalink]

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10 May 2008, 22:02
sondenso wrote:
33.
When a caterpillar emerges from the egg on a tree branch, it immediately climbs upward until it finds a leaf bud to eat. Biologists thought that this behavior displayed an innate tendency to move in the direction opposite to the pull of gravity. In a recent experiment, a strong light source was placed at the bottom of a tree, and caterpillars, after hatching, climbed downward.
Which of the following hypotheses is best supported by the statements given?

(A) Caterpillars have an innate tendency to move in the direction of gravity.
(B) Newly hatched caterpillars are unable to see in the dark.
(C) Newly hatched caterpillars move towards the strongest light source in the environment.
(D) Newly hatched caterpillars move toward the leaf bud nearest to them.
(E) The eyes of newly hatched caterpillars become less sensitive to light over time.

C is my choice.
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Re: When a caterpillar emerges from the egg on a tree branch, it [#permalink]

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10 May 2008, 22:16
With some explaination pls!
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Re: When a caterpillar emerges from the egg on a tree branch, it [#permalink]

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11 May 2008, 00:50
sondenso wrote:
33.
When a caterpillar emerges from the egg on a tree branch, it immediately climbs upward until it finds a leaf bud to eat. Biologists thought that this behavior displayed an innate tendency to move in the direction opposite to the pull of gravity. In a recent experiment, a strong light source was placed at the bottom of a tree, and caterpillars, after hatching, climbed downward.
Which of the following hypotheses is best supported by the statements given?

(A) Caterpillars have an innate tendency to move in the direction of gravity. Contradicts immediate upward climb
(B) Newly hatched caterpillars are unable to see in the dark. No mention of darkness in passage
(C) Newly hatched caterpillars move towards the strongest light source in the environment. Hold
(D) Newly hatched caterpillars move toward the leaf bud nearest to them. Recent experiment mentions no leaf buds
(E) The eyes of newly hatched caterpillars become less sensitive to light over time. No mention of caterpillar eyes in passage

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Re: When a caterpillar emerges from the egg on a tree branch, it [#permalink]

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30 Nov 2014, 19:21
argument clearly points to light source either sun or light source. so conclusion that show this will be right one and C does that exactly.

sondenso wrote:
33.
When a caterpillar emerges from the egg on a tree branch, it immediately climbs upward until it finds a leaf bud to eat. Biologists thought that this behavior displayed an innate tendency to move in the direction opposite to the pull of gravity. In a recent experiment, a strong light source was placed at the bottom of a tree, and caterpillars, after hatching, climbed downward.
Which of the following hypotheses is best supported by the statements given?

(A) Caterpillars have an innate tendency to move in the direction of gravity.
(B) Newly hatched caterpillars are unable to see in the dark.
(C) Newly hatched caterpillars move towards the strongest light source in the environment.
(D) Newly hatched caterpillars move toward the leaf bud nearest to them.
(E) The eyes of newly hatched caterpillars become less sensitive to light over time.

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[Reveal] Spoiler:

Re: When a caterpillar emerges from the egg on a tree branch, it   [#permalink] 30 Nov 2014, 19:21
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