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# Parasitic wasps lay their eggs directly into the eggs of

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Parasitic wasps lay their eggs directly into the eggs of [#permalink]

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04 Nov 2004, 05:55
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Parasitic wasps lay their eggs directly into the eggs of various host insects in exactly the right numbers for any suitable size of host egg, If they laid too many eggs in a host egg, the developing wasp larvae would compete with each other to the death for nutrients and space. If too few eggs were laid, portions of the host egg would decay, killing the wasp larvae.

Which of the following conclusions can properly be drawn from the information above?

A. The size of the smallest host egg that a wasp could theoritically parasitize can be determined from the wasp's egg- laying behavior.

B. Host insects lack any effective defenses against the form of predation practiced by parasitic wasps.

C. Parasitic wasps learn from experience how many eggs to lay into the eggs of different host species.

D. Failure to lay enough eggs would lead to the death of the developing wasp larvae more quickly than would laying too many eggs.

E. Parasitic wasps use visual clues to calculate the size of a host egg.
[Reveal] Spoiler: OA

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Last edited by ruhi on 04 Nov 2004, 10:14, edited 2 times in total.
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04 Nov 2004, 06:17
I will go with A on this one. Was a toughy!
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04 Nov 2004, 09:53
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Can I go with C,

Quote:
C. Parasitic wasps learn from experience how many eggs to lay into the eggs of different host species.

Too many eggs..Too few eggs..What is the right number of eggs to lay.How many eggs to lay? I think the wasps would have learnt this lesson from experience only.

Am I thinking too much.?
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04 Nov 2004, 09:59
Newkid, what if their egg laying behaviours are innate? Can you refute that?
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04 Nov 2004, 10:41
A by default since we have no information concerning learning behaviors, the cues used by wasps, relative fatality, and the impact of defense mechanisms would presumably be incorporated into the implicit calculus of the wasp.

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Parasitic wasps lay their eggs directly into the eggs of [#permalink]

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12 Apr 2005, 06:31
Parasitic wasps lay their eggs directly into the eggs of various host insects in exactly the right numbers for any suitable size of host egg. If they laid too many eggs in a host egg, the developing wasp larvae would compete with each other to the death for nutrients and space. If too few eggs were laid, portions of the host egg would decay, killing the wasp larvae.

Which of the following conclusions can properly be drawn from the information above?

A: The size of the smallest host egg that a wasp could theoretically parasitize can be determined from the wasp's egg-laying behavior.
B: Host insects lack any effective defense against the form of predation practiced by parasitic wasps.
C: Parasitic wasps learn from experience how many eggs to lay into the eggs of different host species.
D: Failure to lay enough eggs would lead to the death of the developing wasp larvae more quickly than would laying too many eggs.
E: Parasitic wasps use visual clues to calculate the size of a host egg.
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12 Apr 2005, 07:36
C it is

A: The size of the smallest host egg that a wasp could theoretically parasitize can be determined from the wasp's egg-laying behavior.
B: Host insects lack any effective defense against the form of predation practiced by parasitic wasps. Out of scope
C: Parasitic wasps learn from experience how many eggs to lay into the eggs of different host species. This is it
D: Failure to lay enough eggs would lead to the death of the developing wasp larvae more quickly than would laying too many eggs. This wasnâ€™t mention in the stem
E: Parasitic wasps use visual clues to calculate the size of a host egg. Nothing about calculation was mentioned
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12 Apr 2005, 07:53
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"A"....wasps egg laying behavior i.e. fewer eggs for smaller host eggs and more eggs in bigger host eggs, there is a direct correlation bet how many eggs a wasps lay in the host eggs with the size of host eggs size. First line gives us that.

"Parasitic wasps lay their eggs directly into the eggs of various host insects in exactly the right numbers for any suitable size of host egg"
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12 Apr 2005, 09:27
A
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13 Apr 2005, 00:40
A: The size of the smallest host egg that a wasp could theoretically parasitize can be determined from the wasp's egg-laying behavior.

B: Host insects lack any effective defense against the form of predation practiced by parasitic wasps.
Not mentioned either.

C: Parasitic wasps learn from experience how many eggs to lay into the eggs of different host species.
Nope. Passage does not indicate this either. The wasps may know because of something other than experience.

D: Failure to lay enough eggs would lead to the death of the developing wasp larvae more quickly than would laying too many eggs.
No proof.

E: Parasitic wasps use visual clues to calculate the size of a host egg.
Passage does not say so. What if they used their sense of smell?
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13 Apr 2005, 17:00
SOS!!!

Can somebody help me to understand how to interpret the last sentence?? I am not able to understand the meaning of it!!??

-> If too few eggs were laid, portions of the host egg would decay, killing the wasp larvae.

Thank you.
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14 Apr 2005, 04:22
A
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14 Apr 2005, 04:56
A
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16 Apr 2005, 00:05
Hello everyone,
The OA is (A). I still don't understand the meaning of the sentence "If too few eggs were laid, portions of the host egg would decay, killing the wasp larvae". Can somebody help me to better understand the meaning? Thank you.
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19 Apr 2005, 05:58
A) resate the passage meaning in a short form
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Parasitic wasps lay their eggs directly into the eggs of [#permalink]

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30 Jan 2006, 20:36
Parasitic wasps lay their eggs directly into the eggs of various host insects in exactly the
right numbers for any suitable size of host egg. If they laid too many eggs in a host egg, the
developing wasp larvae would compete with each other to the death for nutrients and
space. If too few eggs were laid, portions of the host egg would decay, killing the wasp
larvae.
Which of the following conclusions can properly be drawn from the information above?

A. The size of the smallest host egg that a wasp could theoretically parasitize can bedetermined from the wasps egg-laying behavior.

B. Host insects lack any effective defenses against the form of predation practiced byparasitic wasps.

C. Parasitic wasps learn from experience how many eggs to lay into the eggs of differenthost species.

D. Failure to lay enough eggs would lead to the death of the developing wasp larvae morequickly than would laying too many eggs.

E. Parasitic wasps use visual clues to calculate the size of a host egg.
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30 Jan 2006, 21:24
My pick : A

A. The size of the smallest host egg that a wasp could theoretically parasitize can bedetermined from the wasps egg-laying behavior.

since the wasps somehow know how many eggs to lay in order for their larvae to survive, one can in theory compute the smallest size based on their egg-lay behavior ..

As you can see below - all the other choices can be eliminated with lot more certainity, leaving just "A"

B. Host insects lack any effective defenses against the form of predation practiced byparasitic wasps.

lack of effective defensive mechanism in the host - is out of scope

C. Parasitic wasps learn from experience how many eggs to lay into the eggs of differenthost species.
nothing in the argument talks about how the wasps know how many eggs to lay - hence out of scope

D. Failure to lay enough eggs would lead to the death of the developing wasp larvae morequickly than would laying too many eggs.

- the argument is not about which method will lead to the quicker end of the wasp larvae - so we cannot come to this conclusion that one method will lead to quick death than the other

E. Parasitic wasps use visual clues to calculate the size of a host egg.
- again, how the wasps know how many eggs to lay is out of scope
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30 Jan 2006, 21:53
My pick here is (C)

Reason being that wasps know how many eggs to lay and that is a premise to the argument.
The "too many eggs....and too few eggs" is an assertion to this premise.

Hence conclusion should be about how warp knows how many eggs to lay.
between (C) and (E).
(E) sounded too specific and looking at (C) it somehow covers a broader range.

So my FA (C).
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30 Jan 2006, 22:12
A

Premise: Parasitic wasps lay their eggs directly into the eggs of various host insects in exactly the right numbers for any suitable size of host egg

Thus A could be properly concluded from the premise
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31 Jan 2006, 03:59
TeHCM wrote:
A

Premise: Parasitic wasps lay their eggs directly into the eggs of various host insects in exactly the right numbers for any suitable size of host egg

Thus A could be properly concluded from the premise

TEHCM

when you are asked to supply a conclusion......is it true that the answer has to have all the evidence in it...or just 1 evidence is required ??? and u can call it a conclusion ???????

inshort conclusion is drawn keeping all the evidence in mind or just 1 ???
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Re: CR-Parasitic wasps   [#permalink] 31 Jan 2006, 03:59

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