Larva of Culex floats on surface of water with its head _________.
A
Directed upwards
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B
Directed downwards
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C
Parallel to surface
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D
Attached to surface of water
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Solution
The correct option is B Directed downwards The larva of Culex mosquitoes hang with their heads down and the brushes of their mouths filter anything small enough to be eaten toward their mouths to nourish the growing larvae.