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Question: Answered & Verified by Expert
Which of the following statement is true about cockroach?
BiologyStructural Organisation in AnimalsNEET
Options:
  • A There are three ganglia in thorax and nine in abdomen
  • B Each eye consists of about 6000 hexagonal ommatidia
  • C Fat body, nephrocytes and uricose glands help in excretion
  • D Respiratory system consists of network of trachea that open through 8 pairs of spiracles
Solution:
2798 Upvotes Verified Answer
The correct answer is: Fat body, nephrocytes and uricose glands help in excretion
Cockroaches consist of nine ganglia. Out of these three are present in the thorax and six are in the abdomen. Cockroaches consist of compound eyes and these contain small units known as ommatidia. which is around 2000 in number. Respiratory system consists of ten pairs of spiracles. Excretion is done with the help of Fat bodies, nephrocytes and uricose glands.

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