Which of the following pertains to both tetanus and foodborne botulism?
A. They are caused by enterotoxins of the pathogen.
B. They occur when endospore-contaminated soil enters deep wounds.
C. Nausea and diarrhea are symptoms.
D. An exotoxin blocks acetylcholine release.
E. Treatment involves antitoxin therapy.
Answer: E
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Oxygen will diffuse across gill membranes into the blood because _____
a. oxygen is in higher concentration in the blood compared to the water b. oxygen is in lower concentration in the water compared to the blood c. oxygen is in higher concentration in the water than in the blood d. oxygen is in equal concentration in both the blood and the water e. the gills attract oxygen chemically
Genomics is the study of ________.
A. the information content of genomes B. the gene products that genomes encode C. the molecular organization of genomes D. All of the choices are correct.
In reproductive cloning, cells are subjected to an electric current under special circumstances. What effect does this have?
A) It mimics fertilization and begins embryonic development. B) It removes an udder cell from an adult. C) It introduces recombinant DNA. D) It removes DNA from an egg.
What are the roles of ATP and NADPH in photosynthesis?
What will be an ideal response?