Author Question: Circadian rhythms are a. endogenous cycles of activity over the course of a day. b. not found ... (Read 102 times)

tfester

  • Hero Member
  • *****
  • Posts: 534
Circadian rhythms are
 
  a. endogenous cycles of activity over the course of a day.
  b. not found in plants.
  c. learned patterns of daily activity.
  d. annual changes in behavior (such as migration).
  e. monthly cycles of reproductive activity.

Question 2

A hamster, when put in endless darkness, will display activity that fits a 23-hour day. This rhythm that the hamster is displaying is a(n)
 
  a. endogenous rhythm.
  b. pacemaker.
  c. entrained rhythm.
  d. internal rhythm.
  e. external rhythm.



al

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

Answer: a. endogenous cycles of activity over the course of a day.

Answer to Question 2

Answer: a. endogenous rhythm.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

For a complete list of videos, visit our video library