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  • The ommatidia are present inOption: 1 Complex eyes of cockroachOption: 2 Combined eyes of c

The ommatidia are present in

Option: 1

Complex eyes of cockroach


Option: 2

Combined eyes of cockroach


Option: 3

Compound eyes of cockroach


Option: 4

None of these

 


Answers (1)

best_answer

 

 

Nervous System of Cockroach -

Nervous System of Cockroach

  • The nervous system of cockroach consists of a series of fused segmentally arranged ganglia joined by paired longitudinal connectives on the ventral side.
  • Three ganglia lie in the thorax and six in the abdomen.
  • The nervous system of the cockroach is spread throughout the body.
  • The head holds a bit of a nervous system while the rest is situated along the ventral part of its body .
  • The brain is represented by supra-oesophageal ganglion which supplies nerves to antennae and compound eyes.

Sense Organs

  • In cockroach, the sense organs are antennae, eyes, maxillary palps, labial palps, anal cerci etc. 
  • Each eye consists of about 2000 hexagonal ommatidia
  • With the help of several ommatidia, a cockroach can receive several images of an object. 
  • This kind of vision is called mosaic vision.

- 

 

Each compound eye of the cockroach consists of about 2000 hexagonal ommatidia. With the help of several ommatidia, a cockroach can receive several images of an object. This kind of vision is called mosaic vision.

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