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Which of the following statements about Cockroach is INCORRECT?

  1. A
    Cockroaches exhibit mosaic vision with less sensitivity and more resolution
  2. B
    A mushroom-shaped gland is present in the 6th-7th abdominal segments of male
  3. C
    A pair of spermatheca is present in the 6th segment of female cockroach
  4. D
    Female cockroach possesses sixteen ovarioles in the ovaries

Solution & Step-by-step Explanation

Statement A is incorrect. Mosaic vision in cockroaches has more sensitivity but less resolution, especially during the night (nocturnal vision). Cones/ommatidia combine multiple small images to form a mosaic.

Practice this question

Try it yourself before checking the explanation above.

Which of the following statements about Cockroach is INCORRECT?
A
Cockroaches exhibit mosaic vision with less sensitivity and more resolution
B
A mushroom-shaped gland is present in the 6th-7th abdominal segments of male
C
A pair of spermatheca is present in the 6th segment of female cockroach
D
Female cockroach possesses sixteen ovarioles in the ovaries

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structural organisation in animalscockroach

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