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प्रश्न
Eyes of the nocturnal birds have large cornea and a large pupil. How does this structure help them?
उत्तर
The size of the eyes of nocturnal bird is large. Eyes of the nocturnal birds having large cornea with a wider pupil, can collect more ambient light which help them to see the objects even at night.
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संबंधित प्रश्न
Which of the following controls the amount of light entering the eye?
(a) ciliary muscles
(b) lens
(c) iris
(d) cornea
An object is moved closer to an eye. What changes must take place in the eye in order to keep the image in sharp focus?
Give the main function of the following:
Three semicircular canals
Choose the correct answer.
In the chemistry of vision, the photosensitive substance is _________________
Choose the correct answer :
The rods and cones of a vertebrate retina function is to _________
Mention, if the following statement is True or False
Cones are the receptor cells in the retina of the eye sensitive to dim light.
Match the following
| 1. | Conjunctiva | a. | Coloured part of eye |
| 2. | Cornea | b. | Photosensitive layer |
| 3. | Iris | c. | Refraction |
| 4. | Retina | d. | Protection |
Vitreous humour is present between ______.
State the functions of the following:
Iris
Name the following:
Place of no vision in the retina of the eye.
