Describe the secondary response to an antigen
What will be an ideal response?
After a primary response, the body produces memory B cells, which are ready to produce the appropriate antibodies. This occurs quickly, so the person exposed to the particular bacterium or virus may not even feel the effects of the infection. As one is exposed over the years to various antigens, the "matching" antibodies are produced during the primary response, and the memory B cells are produced. This prevents us from getting the exact same disorder more than once (with exceptions) or getting a disease that one has been vaccinated against.
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In ____, the parent separates into two or more offspring of approximately the same size
a. fission b. fertilization c. fragmentation d. budding e. parthenogenesis
A common second messenger molecule is
a. a steroid compound. b. cyclic AMP. c. ADP. d. prostaglandin. e. intermedin.
Bacteria use restriction enzymes to:
A) synthesize DNA. B) synthesize RNA. C) synthesize protein. D) destroy foreign protein. E) destroy foreign DNA.
What are some of the changing things in our current world that the author claims we are not well adapted to yet?
A. Computer screens B. Junk food C. Sterile environments D. 24 hour schedules E. None of the above (A-D) F. Some of the above (A-D)