During the day in Lake Constance,the zoo-plankton D.hyalina : GMAT Critical Reasoning (CR)
Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 24 Feb 2017, 08:29

### 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

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# During the day in Lake Constance,the zoo-plankton D.hyalina

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:

### Hide Tags

Senior Manager
Joined: 12 Oct 2003
Posts: 261
Location: sydney
Followers: 1

Kudos [?]: 20 [0], given: 0

During the day in Lake Constance,the zoo-plankton D.hyalina [#permalink]

### Show Tags

14 Apr 2004, 19:12
00:00

Difficulty:

(N/A)

Question Stats:

100% (01:02) correct 0% (00:00) wrong based on 1 sessions

### HideShow timer Statistics

3.During the day in Lake Constance,the zoo-plankton D.hyalina departs for the depths where food is scarce and the water cold.D.galeata remains near the warm surface where food is abundant. Even though D.galeata grows and reproduces much faster,its population is often outnumbered by D.hyalina.
Which of the following,if true,would help resolve the apparent paradox presented above?
(A)The number of species of zooplankton living at the bottom of the lake is twice that of species living at the surface.
(B)Predators of zooplankton, such as white-fish and perch,live and feed near the surface of the lake during the day.
(C)In order to make the most of scarce food resources, D.hyalina matures more slowly than D galeata.
(D)D galeata clusters under vegetation during the hottest part of the day to avoid the sun's rays.
(E)D galeata produces twice as many offspring per individual an any given period of time as does D.hyalina.
_________________

When u r about to make ends meet, someone moves the ends.

If you have any questions
you can ask an expert
New!
GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4302
Followers: 40

Kudos [?]: 439 [0], given: 0

### Show Tags

14 Apr 2004, 19:23
B it is
A) we are not interested by the other number of species
B) this explains how D.hyalina's population could be more because it avoids predators roaming at the surface during the day
C) even though it matures more slowly, it does not resolve the paradox as to other factors(ie death rate, reproductive rate) that may affect it's larger population
D) what is the point of avoiding the sun's ray if it would starve to death at the bottom of the sea?
E) totally contradicts the premise
_________________

Best Regards,

Paul

SVP
Joined: 30 Oct 2003
Posts: 1793
Location: NewJersey USA
Followers: 6

Kudos [?]: 100 [0], given: 0

### Show Tags

15 Apr 2004, 06:03
I believe these questions are already answered in the forum.

Dog pile again on B.
15 Apr 2004, 06:03
Similar topics Replies Last post
Similar
Topics:
1 At HappyDay farms, seasonal staff is employed to pick apples during 1 20 Aug 2016, 16:46
2 In Europe, schoolchildren devote time during each school day to calist 2 28 Dec 2015, 23:59
6 RAGCT 2015 Day 30: During the period in which there are no competitive 14 21 Aug 2015, 08:34
Lyca gives her dog a cup of dog food twice during the day. 3 04 Jun 2010, 02:08
During the SARS days, about 23,500 doctors who had treated 7 18 Aug 2009, 08:13
Display posts from previous: Sort by

# During the day in Lake Constance,the zoo-plankton D.hyalina

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.