« previous next »

Author Question: The pigment necessary for night vision is: A) rods. B) cones. C) rhodopsin. D) fovea ... (Read 83 times)

ishan

  • Hero Member
  • *****
  • Posts: 546
on: Jun 26, 2018
The pigment necessary for night vision is:
 
  A) rods.
  B) cones.
  C) rhodopsin.
  D) fovea centralis.

Question 2

The small depression located in the macula lutea is known as the:
 
  A) optic disk.
  B) retina.
  C) fovea centralis.
  D) ciliary body.


triiciiaa

  • Sr. Member
  • ****
  • Posts: 349
Reply #1 on: Jun 26, 2018
Answer to Question 1

C
Explanation: A) Rods are used for night vision, but they are not pigment.
B) Cones are sensitive to bright light and color vision.
C) Correct.
D) Fovea centralis is the central focusing point within the eye.

Answer to Question 2

C
Explanation: A) The optic disk is where the optic nerve exits the eye.
B) The retina is the lining of the posterior eye.
C) Correct.
D) The ciliary body attaches the iris to the eye.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Examples of binocular and monocular fields of vision. Examples of binocular and monocular fields of vision.
Vision Vision
A section of the retina. The fovea is the indentation at the center of the retina; it is specialized ... A section of the retina. The fovea is the indentation at the center of the retina; it is specialized ...
The distribution of cones and rods over the human retina. The figure illustrates the number of cones ... The distribution of cones and rods over the human retina. The figure illustrates the number of cones ...
Normal and Impaired Vision Normal and Impaired Vision
Testing distant vision Testing distant vision
Video: Studying the Left and Right Brain Independently

For a complete list of videos, visit our video library