Special bone cells, called ________, are responsible for laying down new bone.
A. osteoclasts
B. Haversian canals
C. osteocytes
D. osteoblasts
Answer: D
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The addition of thioglycylate into a growth medium would NOT support the growth of a(n)
A) aerotolerant anaerobe. B) facultative aerobe. C) microaerophilic aerobe. D) obligate anaerobe.
Proteins that react specifically with the chemical structures in the antigen that induced them are called
A. determinants. B. antibodies. C. proteases. D. macroproteins.
The protection provided through transfer of antibodies from mother to fetus is an example of
A. active immunity. B. passive immunity. C. cell-mediated immunity. D. clonal selection. E. autoimmunity.
Which of the following enzymes breaks down the "glue" that holds cells together?
A) Hyaluronidase B) Streptokinase C) Fibrinolysin D) Collagenase