Laboratory isolation of Nanoarchaeum equitans requires the presence of
A) fatty acids.
B) oxygen.
C) Ignicoccus.
D) sunlight.
Answer: C
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The evolution of flowers and insects is an example of ____
a. parallel evolution b. homologous species c. coevolved species d. convergent evolution e. divergent evolution
Answer the following statements true (T) or false (F)
1.Administering antivenom is a form of active immunity. 2.A vaccine could be prepared against a virus by allowing a patient to breathe viral coat proteins. This primary response would allow for a later, strong secondary immune response to the virus. 3.A baby receiving antibodies in breast milk from its mother is an example of passive immunity. 4.Innate immune responses involve antibodies. 5.A person is having an immune response to their flu vaccine by producing antibodies and memory cells. This is an example of passive immunity.
Autoimmune diseases result from
a. overactive immune function. b. increase in self-tolerance. c. failure of the immune system to differentiate self and nonself molecules. d. communicable infections.
Which of the following is a waterborne pathogen that causes severe diarrhea?
A) Entamoeba histolytica B) Naegleria fowleri C) Campylobacter jejuni D) Toxoplasma gondii E) Gonyaulax species