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Question

Q33a of the PSLE Science paper:
What is the difference between larvae and pupae?
Can someone please tell me the answer? Thanks!

Answer

pupae is the stage after larvae where the larvae encloses itself in a cocoon. larvae the young of an insect. 

eg. caterpillar is the larvae stage. then it will become a chrysalis which is the pupae stage

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This should be straight forward.

  1. The larva is a worm-like thing that comes directly from an egg.  It moves and grows as it feeds.
  2. The pupae comes after the larvae stage, when the pupa encloses itself in an inanimate shell for some time before being transformed into the adult stage.

Eg. Caterpillar – larva stage.  After a while, the caterpillar encloses itself into a cocoon, which is the pupa.  Finally, the butterfly (adult stage) emerges. 

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The thing is, though, the question was not about a butterfly, but a bee. Most people wrote that the larva moves but the pupa does not, which is correct. But I was not sure whether that holds true for all larvae and pupae. My answer was that the larva moulta but the pupa does not. I don’t know where that came from and I’m not sure about it, but I still wrote that.

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