« previous next »

Author Question: Explain the difference between the function of the rods and the cones in the retina. What will be ... (Read 39 times)

imanialler

  • Hero Member
  • *****
  • Posts: 539
on: Jun 27, 2018
Explain the difference between the function of the rods and the cones in the retina.
 
  What will be an ideal response?

Question 2

A varicocele can be the cause of ________.
 
  A) impotence
  B) infertility
  C) urinary hesitancy and dribbling
  D) premature ejaculation


Meganchabluk

  • Sr. Member
  • ****
  • Posts: 301
Reply #1 on: Jun 27, 2018
Answer to Question 1

The retina contains special light-sensitive cells known as rods and cones. Rods are sensitive to all levels of light, but not to color. Rods function in both daytime and nighttime vision. Rods can detect objects in very low light, although the image may be less than optimal. Cones, on the other hand, are sensitive only to color. The cones respond to red, green, and blue light. It is difficult to see colors in dim light because it takes many photons to activate a cone.

Answer to Question 2

B
Explanation: A) A varicocele is a varicose vein in the spermatic cord, but this does not cause impotence.
B) Correct A varicocele is a varicose vein in the spermatic cord, and this can cause a low sperm count.
C) A varicocele is a varicose vein in the spermatic cord, but this does not cause urinary problems.
D) A varicocele is a varicose vein in the spermatic cord, but this does not cause premature ejaculation.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

An electron micrograph from an experiment demonstrating the function of a tight junction An electron micrograph from an experiment demonstrating the function of a tight junction
Multiple sclerosis (MS). (a) A disease characterized by the gradual development of small areas of ha Multiple sclerosis (MS). (a) A disease characterized by the gradual development of small areas of ha
Membrane Synthesis, lipid Bilayers, Enzymes function Membrane Synthesis, lipid Bilayers, Enzymes function
A Production Function with Diminishing Marginal Product of Capital A Production Function with Diminishing Marginal Product of Capital
Resting Membrane Potential: Voltage Difference Resting Membrane Potential: Voltage Difference
List transformations and Create a table of values for the following log function: List transformations and Create a table of values for the following log function:
Video: Angiotensin II - kidneys, adrenal glands and dehydration

For a complete list of videos, visit our video library