Which of the following structures are the sensory receptor cells that are active in dim light?

a. cones
b. lens
c. rods
d. iris


c
Explanation:
a. cones: help the eye in bright light
b. lens: bends light rays passing through it
c. rods: correct
d. iris: colored portion of the eye; changes the size of the pupil

Health & Biomechanics

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