« previous next »

Author Question: Depth of focus is normally greater A) in dim light. B) when the pupils are dilated. C) when ... (Read 175 times)

gbarreiro

  • Hero Member
  • *****
  • Posts: 566
on: Jun 22, 2018
Depth of focus is normally greater
 
  A) in dim light.
  B) when the pupils are dilated.
  C) when the pupils are constricted.
  D) when the ciliary muscles are contracted.
  E) both B and D

Question 2

The amount of light reaching the retinas is controlled by two donut-shaped bands of contractile tissue called the
 
  A) pupils.
  B) scleras.
  C) corneas.
  D) foveas.
  E) none of the above


scrocafella

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Pacific hagfish resting on the ocean bottom, at 280 m depth off the Oregon coast. Pacific hagfish resting on the ocean bottom, at 280 m depth off the Oregon coast.
Fun with light refraction Fun with light refraction
Supernova Light Curves Supernova Light Curves
Cross-sectional data showing that the amount of effort spent on personal health care increases with Cross-sectional data showing that the amount of effort spent on personal health care increases with
The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum
The amount of genetic variation within populations is far greater than the variation between populat The amount of genetic variation within populations is far greater than the variation between populat
Video: Mendel's Pea Experiment

For a complete list of videos, visit our video library