Two microorganisms that produce toxins (intoxication) in food that can cause symptoms after the food is consumed even without infection by the microorganisms are:
A. Staphylococcus aureus and Clostridium botulinum
B. Streptococcus pyogenes and Clostridium botulinum
C. Staphylococcus aureus and Streptococcus pyogenes
D. Escherichia coli and Shigella dysenteriae
E. Vibrio cholerae and Escherichia coli
Ans: A. Staphylococcus aureus and Clostridium botulinum
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A. are long-lived. B. are limited primarily by carrying capacity. C. provide extensive care for their offspring. D. produce many offspring. E. reproduce later in life.
Which of the following will protect the body against any type of pathogen and infection?
A) acquired defenses B) cell-mediated immunity C) innate defenses D) antibody-mediated immunity
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The affected children in the family above are much more prone to cancer than their unaffected siblings. Which of the following could be true of the affected children?
What will be an ideal response?