BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

★★★★★5.0559 reviews
Vote for Target Test Prep, Newsweek Readers’ Choice Awards 2026
NEWSWEEK READERS’ CHOICE 2026

BIG NEWS! Target Test Prep has been nominated, and they’d love your vote!

TTP has worked incredibly hard to build the best test prep experience possible, and winning Newsweek’s 2026 Readers’ Choice Award for Best Test Prep would mean a lot to them. If TTP has helped you, they’d be incredibly grateful for your vote. You can vote once each day through September 9.

Vote for TTP
GMATLiveTeach 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

It is well known that many species adapt to their

Expert replies
by BTGmoderatorDC » Wed Jul 25, 2018 10:15 pm

Timer

00:00

Answers

A

B

C

D

E

Stats

Difficulty

It is well known that many species adapt to their environment, but it is usually assumed that only the most highly evolved species alter their environmentt in ways that aid their own survival. However, this characteristic is actually quite common. Certain species of plankton, for example generate a gas that is converted in the atmosphere into particles of sulphate. These particles cause water vapor to condense,thus forming clouds. Indeed, the formation of clouds over the ocean largely depends on the presense of these particles.More cloud cover means more sunlight is reflected, and so the earth absorbs less heat.Thus plankton cause the surface of the earth to be cooler and this benefits the plankton.

What is the main conclusion of the above statements?

a.Plakton cause the surface of the earth to be cooler.
b.It is well known that many species adapt to their environment
c.The formation of clouds depends on the presense of sulphate particles in the atmosphere.
d.The characteristic of species altering their environmentt in ways that aid their own survival actually quite common
e.Certain planktons aid in the formation of clouds
Join the discussion
Source: — Critical Reasoning |

by deloitte247 » Thu Jul 26, 2018 1:03 pm
Option A - INCORRECT.
This option is just an example sighted to give more information on the assumption that, only the most highly evolved species alter their environment in ways that aid their own survival. Therefore this option is not the conclusion base on the statement.

Option B - INCORRECT.
It is well known that many species adapt to their environment, but only the young species does this.

Option C - INCORRECT.
This option has picked some part of the information given, However it does not worth to be a conclusion on the statement given.

Option D - CORRECT.
This option stands to be the most suitable conclusion of the statement. It is well known that many species adapt to their environment, meanwhile, only the most highly evolved species alter their environment in ways that aid their own survival. However, this characteristic is actually quite common, an example of such species is a certain plankton who generate a gas that is converted in the atmosphere into particles of sulphate. This process causes the surface of the earth to be cooler and this benefits the plankton and also aids their survival.

Option E - INCORRECT.
Certain plankton aid in the formation of cloud is an example sighted in the statement and not a fact to represent how other species create their own atmosphere for survival.
Join the discussion

answer

by ByjusGMATapp » Fri Aug 17, 2018 9:57 pm
Let us look at the step by step approach to this question.

The first step would be identify the Question type : From the word "Conclusion" given in the argument, we come to know that the question seeks an option that is supported by the information given in the argument. Hence this can be categorized as an Inference Question.

The obvious step to solve an Inference question would be to first check for the obviously wrong answers and eliminate them. This also means you can eliminate answer choices that are not always true.

A - Not true as per the information given as there is no relationship between Planktons and earth's temperature directly.
B - Very generic statement. There could be species that do not adapt at all.
C - This option tends to make us believe that sulphate particles are the only reason why clouds are formed - This is incorrect.
D - OA
E - This is just an example. Again, it may not be the planktons directly. It is planktons plus the other factors.

Hope that helped - All the best :)

Thanks,

Saikiran Dudyala
Byju's GMAT Expert
Join the discussion