Zoology - Neural Control and Coordination Question with Solution | TestHub

The diameter of the pupil is regulated by the muscle fibres of iris under autonomic nervous system.

The retina of human eyes has two types of cones which possess their own characteristic photopigments.

The Fovea is a thinned-out portion of the retina where only cones are densely packed.

Light induces dissociation of the retinal from opsin resulting in changes in the structure of the opsin.