Ommatidia serve the purpose of photoreception in:-
1. Cockroach
2. Frog
3. Human
4. Star Fish
Types of eyes and vision in cockroach are respectively
| 1. | Simple eye and simple vision |
| 2. | Simple eyes and mosaic vision |
| 3. | Compound eyes and mosaic vision |
| 4. | Compound eyes and simple vision |
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. |
| 1. | The forewings are metathoracic and used in flight. |
| 2. | Anal cerci are seen only in male cockroaches. |
| 3. | Blood vascular system is of closed type. |
| 4. | The vision is mosaic. |