Sam works in construction and stepped on a sharp nail. He can't remember the last time he had a tetanus shot. What type of immunity is the most important for him to receive?
A. artificial passive immunity
B. natural passive immunity
C. natural active immunity
D. artificial active immunity
Answer: A
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In glycolysis, a major portion of the energy remains in the final product, which is called
A. glucose. B. citrate. C. glyceraldehyde 3-phosphate (G3P). D. pyruvate.
The human body has about 10 bacterial cells for every eukaryotic cell. Bacteria coat our skin, gut, and mouth. Also present are protists, Archaeans, and viruses. Collectively, these organisms are our microbiota
For most members of our microbiota, our body provides their environment (or space to live). They, in turn, have no effect on us. This is an example of _______________. A. mutualism B. an antagonistic relationship C. commensalism D. predation
What is one technique that is used to identify a specific DNA sequence of a sample from a library?
A. Western blotting B. Northern blotting C. Southern blotting D. Eastern blotting
The sympathetic nervous system:a
is involved in restoring energy to the body. b. directs quiet, calm activities. c. is the only system that innervates the heart. d. is activated when there is a startling situation. e. is part of the somatic division.