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Q.

The neural system of insects like the cockroach lacks

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a

brain

b

meninges

c

ganglia

d

neurons

answer is B.

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Detailed Solution

The neural system of insects such as the cockroach lacks meninges, unlike vertebrate brains. Fishes possess a single meninx called meninx primitiva. Amphibians, reptiles and aves possess two meninges, viz., dura mater and pia mater. Mammals possess  three meninges: dura mater, arachnoid and pia mater.

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