Author Question: Why do older adults need higher levels of illumination to see clearly? a. The number of cones in ... (Read 161 times)

Mr.Thesaxman

  • Hero Member
  • *****
  • Posts: 514
Why do older adults need higher levels of illumination to see clearly?
 
  a. The number of cones in the retina decreases.
  b. Hardening of the lenses begins at about age 20 . c. Pupil size decreases with age.
  d. There is a flattening of the retina.

Question 2

Age-related changes in the sensory system begin in remainder of a person's life.
 
  a. later adolescence b. early adulthood
  c. middle adulthood
  d. later adulthood, and their effects increase throughout the



robbielu01

  • Sr. Member
  • ****
  • Posts: 336
Answer to Question 1

c

Answer to Question 2

b



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

For a complete list of videos, visit our video library