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In cockroaches the number of ganglia are
Option: 1
Two pairs thoracic and four pairs abdominal
Option: 2
Three pairs thoracic and five pairs abdominal
Option: 3
Three pairs thoracic and six pairs abdominal
Option: 4
Two pairs thoracic and six pairs abdominal
Answers (1)
As we have learned
Central Nervous system in arthropoda -
Consists of paired pre - oral ganglia connected by commissures to a solid double ventral nerve cord.
-
Total no. of ganglia in central nerve cord of cockroach is nine pairs
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