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Question

How many of the given statements are true?

A) In a cockroach, the brain is represented by a supra-oesophageal ganglion that supplies nerves to the maxillary and labial palps.
B) The compound eyes are situated at the ventral surface of the head.
C) Each compound eye consists of 200 hexagonal ommatidia.

A
One
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B
Two
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C
Three
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D
None of the above
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Solution

The correct option is A One
The supra-oesophageal ganglion, present in the head region of a cockroach, supplies nerves to the antennae and compound eyes. The compound eyes are located at the dorsal surface of the head and each of the eyes consists of 2000 hexagonal ommatidia.

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