10 state the difference between the two
Rods and cones.
îinis
Iris and Pupil
in
nna and Tympanum
Answers
Answer:
The iris and pupil are present in the eyes.
The iris regulates the amount of light entering through the pupil. Hence it acts like the camera shutter. It is the colored part of the eye.
Pupil is the opening through which light enters the eyes. It is the black hole present at the center of the iris. It dilates and constricts in response to change in the amount of light.
Answer:
Rods : are the responsible for vision at low light levels . They do not mediate colour vision, and have a low spatial acuity. These are rod like shaped structures.
Explanation:
Cones: are active at higher light levels ( photopic vision) are capable of colour vision and are responsible for high spatial security .The central Fovea is populated exclusively by cones. These are cone shaped structures. (These two Cones and Rods are present in retina.)