Diphtheria is an acute contagious disease caused by an exotoxin that
A. functions by inhibiting protein synthesis.
B. can be neutralized as a result of immunity produced by the DTaP vaccine.
C. may cause destruction of cardiac, kidney and nerve tissues.
D. All of the choices are correct.
Answer: D
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Rheumatic fever is
A) an autoimmune disease. B) a poststaphylococcal disease. C) triggered by cell-surface antigens on Staphylococcus aureus cells that are similar to heart valve and joint antigens. D) caused by human papillomavirus.
Which one of the following lists the bones of the arm from the fingertips to the shoulder joint?
A) humerus, radius and ulna, carpals, metacarpals, phalanges B) phalanges, metacarpals, carpals, radius and ulna, humerus C) phalanges, carpals, metacarpals, radius and ulna, humerus D) phalanges, metacarpals, carpals, humerus, radius and ulna E) radius and ulna, humerus, carpals, metacarpals, phalanges
What evidence supports the hypothesis that the nuclear envelope of eukaryotes arose from infolding of the plasma membrane?
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