Author Question: The concept that neurons refine their many connections based on which ones are most successful is ... (Read 42 times)

lak

  • Hero Member
  • *****
  • Posts: 546
The concept that neurons refine their many connections based on which ones are most successful is known as ____.
 
  a. natural selection
 b. evolution
 c. survival of the fittest
  d. neural Darwinism

Question 2

Stress activates two systems. One is the ____.
 
  a. HPA axis, which reacts more quickly than the other
 b. HPA axis, which becomes increasingly important with prolonged stressors
  c. autonomic nervous system which secretes the hormone ACTH
 d. autonomic nervous system which secretes the hormone cortisol



tanna.moeller

  • Sr. Member
  • ****
  • Posts: 328
Answer to Question 1

d

Answer to Question 2

b



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

For a complete list of videos, visit our video library