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BIGDAMNGOD
Joined: 20 Mar 2020
Last visit: 12 Jul 2025
Posts: 85
Given Kudos: 95
Location: India
Schools: Stern '25 CBS '25 Fuqua '25 Kellogg '25 Cornell '25 Yale '25
GMAT 1: 710 Q49 V38
GPA: 4
Updated on: 07 Jul 2023, 01:39
Originally posted by BIGDAMNGOD on 07 Jul 2023, 01:25.
Last edited by Bunuel on 07 Jul 2023, 01:39, edited 1 time in total.
Last edited by Bunuel on 07 Jul 2023, 01:39, edited 1 time in total.
Edited the question.
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
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Question Stats:
42% (02:07) correct
58%
(02:24)
wrong
based on 311
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Not Attempted Yet
The three-spine stickleback is a small fish that lives both in oceans and in freshwater lakes. While ocean stickleback are covered with armor to protect them from their predators, lake stickleback have virtually no armor. Since armor limits the speed of a stickleback's growth, this indicates that having a larger size is a better defense against the lake stickleback's predators than having armor.
Which one of the following, if true, weakens the argument?
(A) Sticklebacks with armor are unable to swim as fast, making them most vulnerable to fastmoving predators.
(B) Having a larger size is an important factor in whether lake stickleback, but not ocean stickleback, survive cold winters.
(C) Unlike ocean stickleback, the lake stickleback are more often preyed upon by predatory insects than by larger fish.
(D) Both ocean stickleback and lake stickleback feed primarily on the same types of foods.
(E) Sticklebacks originated in the ocean but began populating freshwater lakes and streams following the last ice age.
Which one of the following, if true, weakens the argument?
(A) Sticklebacks with armor are unable to swim as fast, making them most vulnerable to fastmoving predators.
(B) Having a larger size is an important factor in whether lake stickleback, but not ocean stickleback, survive cold winters.
(C) Unlike ocean stickleback, the lake stickleback are more often preyed upon by predatory insects than by larger fish.
(D) Both ocean stickleback and lake stickleback feed primarily on the same types of foods.
(E) Sticklebacks originated in the ocean but began populating freshwater lakes and streams following the last ice age.
07 Jul 2023, 08:11
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Can someone please explain the reason for answer B
07 Jul 2023, 10:16
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The three-spine stickleback is a small fish that lives both in oceans and in freshwater lakes. While ocean stickleback are covered with armor to protect them from their predators, lake stickleback have virtually no armor. Since armor limits the speed of a stickleback's growth, this indicates that having a larger size is a better defense against the lake stickleback's predators than having armor.
A certain fish S is found at two different places O and L.
O fishes have armour but L fish does not have armour. Further Since armor limits the speed of a stickleback's growth tells us that L fishes are larger in size. This is further used to conclude that the large size as compared to armour must be providing more defence.
So, since large size is the requirement for defence and armour restricts the growth, the L fish do not have armour.
Which one of the following, if true, weakens the argument?
(A) Sticklebacks with armor are unable to swim as fast, making them most vulnerable to fastmoving predators.
Does not touch upon the large size related to armour. Also, we are dealing with L fish’s predators(they could be slow or fast is not addressed)
(B) Having a larger size is an important factor in weather lake stickleback, but not ocean stickleback, survive cold winters.
This may seem disconnected at beginning but we speak of large size and the use. The large size is responsible for L fishes surviving cold waters and thus L fishes have no armour as it restricts the size.
Thus, we have another reason for large size and no armour
(C) Unlike ocean stickleback, the lake stickleback are more often preyed upon by predatory insects than by larger fish.
The option does not give any reason for not believing that large size and hence no armour is for better defence mechanism
(D) Both ocean stickleback and lake stickleback feed primarily on the same types of foods.
Can be discarded straight way
(E) Sticklebacks originated in the ocean but began populating freshwater lakes and streams following the last ice age.
The origin does not affect the argument.
B
A certain fish S is found at two different places O and L.
O fishes have armour but L fish does not have armour. Further Since armor limits the speed of a stickleback's growth tells us that L fishes are larger in size. This is further used to conclude that the large size as compared to armour must be providing more defence.
So, since large size is the requirement for defence and armour restricts the growth, the L fish do not have armour.
Which one of the following, if true, weakens the argument?
(A) Sticklebacks with armor are unable to swim as fast, making them most vulnerable to fastmoving predators.
Does not touch upon the large size related to armour. Also, we are dealing with L fish’s predators(they could be slow or fast is not addressed)
(B) Having a larger size is an important factor in weather lake stickleback, but not ocean stickleback, survive cold winters.
This may seem disconnected at beginning but we speak of large size and the use. The large size is responsible for L fishes surviving cold waters and thus L fishes have no armour as it restricts the size.
Thus, we have another reason for large size and no armour
(C) Unlike ocean stickleback, the lake stickleback are more often preyed upon by predatory insects than by larger fish.
The option does not give any reason for not believing that large size and hence no armour is for better defence mechanism
(D) Both ocean stickleback and lake stickleback feed primarily on the same types of foods.
Can be discarded straight way
(E) Sticklebacks originated in the ocean but began populating freshwater lakes and streams following the last ice age.
The origin does not affect the argument.
B
