Question

If you shine a light in one eye of a healthy animal, what should happen?

A. Only the pupil of the eye with the light shining in should constrict; the pupil of the other eye should remain unaffected.
B. The pupil of the eye with the light shining in should constrict; the pupil of the other eye should compensate by dilating.
C. The pupils of both eyes should constrict.
D. The pupils of both eyes should dilate initially and then constrict.

Answer 1

what does constrict mean if I know that then I know the answer

Answer 2

Answer: Option C

Step-by-step explanation:

In a healthy individual, there is coordination between both the eyes of an organism. If a light is target on a single eye, both the eyes will contract in response to the eyes of the individual.

If a ray of light is shined on the eye of an animal then both the eyes will constrict. The pupils will constrict so that less light enters the eyes of the animal.