Homework Help: ..

Posted by mary on Tuesday, March 12, 2013 at 6:15pm.

if you already had the chiken pox you can be arournd a person with the disease without no fear of becoming sick. what feature of the immune system explains this?

a. acquired immunity
b. cell- mediated immunity
c. humoral immunity
d. primary immune system

.. - Ms. Sue, Tuesday, March 12, 2013 at 6:17pm
http://www.niaid.nih.gov/topics/immunesystem/Pages/immunity.aspx

Answer this Question

Related Questions

English - There are more than 200 different cold viruses. You can build up ...
Math - Scientists are researching a contagious disease. They found that, on ...
pstat.................HELP........................ - A diagnostic test for a ...
Statistics - A group of doctors is trying to see if a vaccine causes a certain ...
5th grade Reading - How do you find an accented syllable,every definition i look...
English - 1. A doctor is a person who takes care of sick peole. 2. A doctor is a...
Math - Can someone please help me? certain medical diagnostic test is used to ...
probability - A new test for detecting a disease has been developed. Medical ...
English - 1. We learned how to give first aid to an injured person. 2. We ...
Probability - Can someone please help me? certain medical diagnostic test is ...

For Further Reading

First Name:
School Subject:
Answer: