C:
Q2. Observe the diagram and answer the following.
________________________
1 Label it. A,B,D
________________________
2. What is iris ?
________________________
3. Write the function of
a. Pupil :
b. Cornea :
c. Retina :
Answers
Explanation:
The iris is a flat and ring-shaped membrane behind the cornea of the eye with an adjustable circular opening in the center called a pupil. This is the structure that provides an individual with eye color. +
The function of the pupil is clearly that of controlling the amount of light entering the eye, and hence the light reflex.
The cornea acts as the eye's outermost lens. It functions like a window that controls and focuses the entry of light into the eye. The cornea contributes between 65- 75 percent of the eye's total focusing power. When light strikes the cornea, it bends--or refracts--the incoming light onto the lens.
The retina is an essential part of the eye that enables vision. It's a thin layer of tissue that covers approximately 65 percent of the back of the eye, near the optic nerve. Its job is to receive light from the lens, convert it to neural signals and transmit them to the brain for visual recognition.
Answer:
Hey friend i cant see the diagram for 1 so i dont know the answer
Explanation:
2. The iris is a flat and ring-shaped membrane behind the cornea of the eye with an adjustable circular opening in the centre called a pupil. This is the structure that provides an individual with eye colour
3 a:The function of the pupil is to allow light to enter the eye so it can be focused on the retina to begin the process of sight
b: The cornea is the transparent part of the eye that covers the front portion of the eye. It covers the pupil (the opening at the centre of the eye
c:The function of the retina is to receive light that the lens has focused, convert the light into neural signals, and send these signals on to the brain for visual recognition