Produce red blood cells
Digest food properly
All viruses contain DNA.
The building blocks of viruses are white blood cells.
A virus is made up of one or more cells.
A virus needs a host in order to reproduce.
All of the above.
Does not make antibodies.
Makes only one type of antibody.
Makes one hundred different types of antibodies.
Makes billions of different types of antibodies.
Only makes cytotoxic T cell antibodies.
Vaccinations use weakened antibodies to stimulate the immune system to react.
Vaccinations utilize hormones in the blood to inhibit reproduction of the virus.
Vaccinations release enzymes from platelets that hydrolyze the virus.
Vaccinations use weakened microbes to stimulate the immune system to react.
None of these statements are true.
Occurs when blood pressure increases during exercise
Cannot be corrected by medical therapy
Can be corrected by stimulating positive-feedback mechanisms
May upset dynamic equilibrium.
Cytotoxic T cells
Diseases can be caused by poor nutrition
Disease can be caused by personal behavior
Diseases can be inherited
Diseases can be caused by antibodies
Disease can be caused by toxic substances
Cancer is an example of dynamic equilibrium.
Cell division accelerates to maintain homeostasis
When skin cells die, they are quickly replaced.
Tumors result when cells divide at an acclerated rate
All of the above
West Nile Virus
Both B and C