A is an insect which breeds in ponds of stagnant water. The egg of this insect produces a worm like form B which is entirely different in appearance from the adult insect. The form B undergoes a change C and gets converted into insect A. The female of insect A is a carrier of protozoan D which spreads a disease in humans.

(a) What are A, B, C and D ?

(b) Name another insect which also undergoes change C.

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Solution

(a) A : Mosquito ; B : Larva ; C : Metamorphosis ; D: Plasmodium
(b) Butterfly

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(a) A : Mosquito ; B : Larva ; C : Metamorphosis ; D: Plasmodium (b) Butterfly

(a) A : Mosquito ; B : Larva ; C : Metamorphosis ; D: Plasmodium
(b) Butterfly