How many nerve ganglia are present in cockroach?

3 pairs of thoracic and 6 abdominal

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2 pairs of thoracic and 4 abdominal

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3 pairs of thoracic and 5 abdominal

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2 pairs of thoracic and 6 abdominal

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Solution

The correct option is D 3 pairs of thoracic and 6 abdominal
A cockroach has 9 segmental nerve ganglia. 3 of which are present in the thoracic region and 6 in the abdominal region.
So the correct option is '3 pairs of thoracic and 6 abdominal'.

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