Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
May 0510:00 AM PDT
-11:00 AM PDT
GMAT Inequalities is a high-frequency topic in GMAT Quant, but many students struggle because the concepts behave differently from standard algebra. Understanding the right rules, patterns, and edge cases can significantly improve both speed and accuracy.- May 06
08:30 AM PDT
-09:30 AM PDT
In Episode 3 of our GMAT Ninja Critical Reasoning series, we tackle Discrepancy, Paradox, and Explain an Oddity questions. You know the feeling: the passage gives you two facts that seem completely contradictory.... - May 08
08:00 AM PDT
-08:30 AM PDT
Join the special YouTube live-stream for selecting the winners of GMAT Club MBA Scholarships sponsored by Juno live. Watch who gets these coveted MBA scholarships offered by GMAT Club and Juno.
16 Jul 2018, 01:23
Kudos
Bookmarks
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
74% (00:55) correct
26%
(01:13)
wrong
based on 639
sessions
History
Date
Time
Result
Not Attempted Yet
Modern-day snakes are believed to evolve from four-legged lizards, but scientists were divided over whether that phase of evolution occurred on land or in the sea; the recent discovery of fossils of a land-dwelling snake with two legs provides new information for the ongoing debate.
A. evolve from four-legged lizards, but scientists were
B. have evolved from four-legged lizards, but scientists are
C. evolve from four-legged lizards, but scientists are
D. have evolved from four-legged lizards, but scientists were
E. be evolving from four-legged lizards, but scientists were
A. evolve from four-legged lizards, but scientists were
B. have evolved from four-legged lizards, but scientists are
C. evolve from four-legged lizards, but scientists are
D. have evolved from four-legged lizards, but scientists were
E. be evolving from four-legged lizards, but scientists were
18 Dec 2021, 02:21
Kudos
Bookmarks
Official Explanation
(1) Take a First Glance (5 seconds)
The underline begins with variations in the verb evolve and ends with either were or are, indicating that the sentence is testing Verbs. Note the timeline of the actions in the sentence to ensure the verb tenses make logical sense.
(2) Read for Meaning
The sentence describes a current belief about the evolution of snakes, as well as an ongoing debate scientists are having on that topic. In the original answer, the phrase are believed to evolve implies that snakes currently change from four-legged lizards into serpents. It is more accurate to use the present perfect have evolved to indicate that the evolution started in the past (beginning with the four-legged lizards of the past) and has continued into the present (resulting in the snakes of today). Additionally, scientists are presently divided over the land-versus-sea evolution debate (…the ongoing debate), so the past tense were divided is not correct. Eliminate answer choice (A) and any other answers that make either of those mistakes.
(3) Find a Starting Point
Start with any difference that seems easiest to you, then move to the next easiest issue, and so on. Stop when you have one answer or you aren’t sure how to address the remaining differences. All errors for each choice are detailed in the next section.
(4) Eliminate (and Repeat)
(A) This choice is incorrect as it repeats the original sentence.
(B) CORRECT. The present perfect have evolved correctly indicates that the evolution started in the past and has continued into the present. Also, the present tense are divided makes it clear that the scientists continue to be divided, as there is an ongoing debate.
(C) The present tense evolve has the same meaning error as the original sentence.
(D) Scientists are presently divided over the land-versus-sea evolution debate (…the ongoing debate), so the past tense were divided is not correct.
(E) The present progressive be evolving is not correct, as it suggests that the change from lizard to snake is still occurring. Snakes do not presently have legs, so that phase of their evolution is complete. It is more accurate to use the present perfect have evolved. Moreover, the past tense were divided is not correct, as there is an ongoing debate.
Answer: B
(1) Take a First Glance (5 seconds)
The underline begins with variations in the verb evolve and ends with either were or are, indicating that the sentence is testing Verbs. Note the timeline of the actions in the sentence to ensure the verb tenses make logical sense.
(2) Read for Meaning
The sentence describes a current belief about the evolution of snakes, as well as an ongoing debate scientists are having on that topic. In the original answer, the phrase are believed to evolve implies that snakes currently change from four-legged lizards into serpents. It is more accurate to use the present perfect have evolved to indicate that the evolution started in the past (beginning with the four-legged lizards of the past) and has continued into the present (resulting in the snakes of today). Additionally, scientists are presently divided over the land-versus-sea evolution debate (…the ongoing debate), so the past tense were divided is not correct. Eliminate answer choice (A) and any other answers that make either of those mistakes.
(3) Find a Starting Point
Start with any difference that seems easiest to you, then move to the next easiest issue, and so on. Stop when you have one answer or you aren’t sure how to address the remaining differences. All errors for each choice are detailed in the next section.
(4) Eliminate (and Repeat)
(A) This choice is incorrect as it repeats the original sentence.
(B) CORRECT. The present perfect have evolved correctly indicates that the evolution started in the past and has continued into the present. Also, the present tense are divided makes it clear that the scientists continue to be divided, as there is an ongoing debate.
(C) The present tense evolve has the same meaning error as the original sentence.
(D) Scientists are presently divided over the land-versus-sea evolution debate (…the ongoing debate), so the past tense were divided is not correct.
(E) The present progressive be evolving is not correct, as it suggests that the change from lizard to snake is still occurring. Snakes do not presently have legs, so that phase of their evolution is complete. It is more accurate to use the present perfect have evolved. Moreover, the past tense were divided is not correct, as there is an ongoing debate.
Answer: B
General Discussion
16 Jul 2018, 01:37
Kudos
Bookmarks
+1 for B.
A. evolve from four-legged lizards, but scientists were
B. have evolved from four-legged lizards, but scientists are --> Correct, scientists 'are' over 'were' because its an ongoing debate
C. evolve from four-legged lizards, but scientists are
D. have evolved from four-legged lizards, but scientists were
E. be evolving from four-legged lizards, but scientists were
Hence, B.
A. evolve from four-legged lizards, but scientists were
B. have evolved from four-legged lizards, but scientists are --> Correct, scientists 'are' over 'were' because its an ongoing debate
C. evolve from four-legged lizards, but scientists are
D. have evolved from four-legged lizards, but scientists were
E. be evolving from four-legged lizards, but scientists were
Hence, B.
