« previous next »

Author Question: A foreign substance that elicits the response of the immune system is called: A) histamine. B) ... (Read 82 times)

sjones

  • Hero Member
  • *****
  • Posts: 520
on: Jul 2, 2018
A foreign substance that elicits the response of the immune system is called:
 
  A) histamine.
  B) antigen.
  C) antibody.
  D) stimulant.

Question 2

Which of the following statements regarding receptor sites of medications is TRUE?
 
  A) An agonist is a drug that binds to receptor sites and prevents a normal response by the cell.
  B) An antagonist is a drug that binds to a receptor and causes a response.
  C) A protagonist is a drug that binds to a receptor and causes a response.
  D) The stronger the attraction of a drug to a receptor site, the greater the affinity.


nyrave

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 2, 2018
Answer to Question 1

B

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

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."

A stallion exhibiting the characteristics of a Flehmen response A stallion exhibiting the characteristics of a Flehmen response
Procedures for Diagnostic Tests Related to the Musculoskeletal system Procedures for Diagnostic Tests Related to the Musculoskeletal system
Apply the substance to the client’s posterior leg with one smooth stroke. To stabilize the ... Apply the substance to the client’s posterior leg with one smooth stroke. To stabilize the ...
The Autonomic Nervous System The Autonomic Nervous System
Ontario's electricity system four key components Ontario's electricity system four key components
Major blood vessels of the human cardiovascular system Major blood vessels of the human cardiovascular system
Video: Hydrogen bonds vs. Ionic bond

For a complete list of videos, visit our video library