Which among the following is incorrect regarding the vision of cockroach?
(1) Compound eyes are located at dorsal surface of head.
(2) They have nocturnal type of vision.
(3) Each eye consists of 3000 malpighian tubules.
(4) Their vision is known as mosaic vision with more sensitivity but less resolution.
The type of vision in cockroach is:
(1) Nocturnal vision
(2) Superposition vision
(3) Dull vision
(4) Mosaic and nocturnal vision
Mosaic vision does not possess which character
(1) More sensitivity
(2) More resolution
(3) Nocturnal vision
(4) Multiple images of an object
Which of the following statements is INCORRECT?
1. | Cockroaches exhibit mosaic vision with less sensitivity and more resolution |
2. | A mushroom-shaped gland is present in the 6th-7th abdominal segments of male |
3. | A pair of spermatheca is present in the 6th segment of female cockroach |
4. | Female cockroach possesses sixteen ovarioles in the ovaries |
Which mouth part of cockroach acts as upper lip?
1. Labium
2. Labrum
3. First maxilla
4. Hypopharynx