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Parasitic wasps lay their eggs directly into the eggs of

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

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New post 18 Jan 2007, 04:23
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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 t hey 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 insect 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
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New post 18 Jan 2007, 05:33
My answer is A. It is like reverse enginnering. Based on the least number of eggs wasps can lay, we can find out the size of the host egg.
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New post 18 Jan 2007, 05:37
A or C :roll:

i vote for C
Director
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New post 18 Jan 2007, 05:43
dr_Shpak wrote:
A or C :roll:

i vote for C


How can you say that they learn from experience? They might carry that in their jeans just as all the animals know how to take food, breathe, and search for partner.

:lol:
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New post 19 Jan 2007, 00:36
OA is A.

Also chose C coz I thought that since only way how the wasps can know exactly how much eggs to lay is due to the familiarity they have with the different host eggs --> Familiarity mean experience.

Turned out that I was wrong. I guess I was venturing 'too far' from the argument. :?

Aurobindo, can you please further explain your reasoning? Thanks.
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Re: CR: Wasps [#permalink]

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New post 19 Jan 2007, 02:39
Hang Tuah wrote:
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 t hey 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

No of wasps' eggs depends on the size of the host egg. For example if the diameter of host egg is 10 cm, then wasp might lay 10 eggs.

The equation can be something like:

No of wasp eggs = radius of the host egg*(x)

The wasp has a mathematical equation based on which it lays its eggs. The least number of eggs it can lay is 1.

By substituting this 1, in the above equation we can arrive at the size of the host egg.

Don't ask me what is the value of x. Only wasp knows that :lol:

(B) Host insect 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
Re: CR: Wasps   [#permalink] 19 Jan 2007, 02:39
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