Question

What is the main idea of this paragraph?

the mechanics of the human eye

the function of the pupil

how light travels through the human eye

how the human eye is similar to a camera

Answer 1

The pupil is the opening to the eye. It functions like the shutter of a camera, widening and narrowing to allow more or less light in. Once inside the eye, the light passes through the lens, the eye's internal focusing element, and eventually reaches the retina, which is located at the back of the eye. If the eye were a camera, the retina would be the film inside the camera, registering the tiny photons of light. The light received by the retina is transmitted through the optic nerve to the brain, where the image is interpreted.

Answer 2

Is it B ?

Answer 3

i will go for "A"

Answer 4

oh yeah i would go with @paki it is more a mechanism :P

Answer 5

Its not D because it is just compared to a camera, not saying it is, ill go with either A or B

Answer 6

Thank you!

Answer 7

pleasure...