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Question

Anal style is present in


A

Female Cockroach

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B

Male Cockroach

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C

Both

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D

None

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Solution

The correct option is B

Male Cockroach


The correct option is B.

Explanation of the correct option:

  1. A flattened oval body, long threadlike antennae, and a shiny black or brown leathery integument distinguish the cockroach.
  2. The cockroach's primary body is separated into three sections: head, thorax, and abdomen.
  3. The head is triangular, created by the fusion of six segments, and is positioned anteriorly at right angles to the longitudinal axis of the body.
  4. The thorax is divided into three sections: the prothorax, mesothorax, and metathorax.
  5. The abdomen is divided into ten segments. The 7th segment in females is shaped like a boat.
  6. The brood or genital component is formed from the 7th sternum, the 8th sternum, and the 9th sternum.
  7. The genital pouch, which is bordered dorsally by the 9th and 10th terga and ventrally by the 9th sternum in males, is located at the back end of the abdomen and contains the dorsal anus, ventral male genital hole, and gonapophysis.
  8. Males have a pair of short thread-like structures called anal styles.

Final answer: Anal style is present in male cockroaches.


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