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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

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BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
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Night vision begins with stimulation of ___ .

  1. a. hair cells
  2. b. rod cells
  3. c. cone cells
  4. d. neuroglia

Summary Introduction

Introduction: The retina in eye consists of photoreceptors that respond to light. They are of two types namely rod cells and cone cells. The rod cells are sensitive to light and dark changes. The cone cells are not sensitive to light and function in bright light.

Explanation

Reason for the correct statement:

Rod cells are numerous in number. They have rhodopsin photopigment. They detect even very low levels of illumination because only a few bits of light can stimulate rod cells. They function in night vision.

Hence, option b. is correct.

Reasons for the incorrect statement:

Option a. is given as “hair cells”...

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