The extracellular matrix is composed of: (1) proteins; (2) polysaccahrides; (3) nucleic acids
A. Statement (1) is correct.
B. Statement (2) is correct.
C. Statement (3) is correct.
D. Statement (1) and (2) are correct.
E. All the statements are correct.
D
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All of the following terms can be used to describe hyphae except:
A) aerial and reproductive. B) septate and aseptate. C) sexual and asexual. D) vegetative.
General symptoms of helminth infection includes all of the following except
A. vague nausea. B. increased eosinophil count. C. eggs, larvae, or adult worms found in feces. D. increased sensitivity to helminth antigens. E. intense abdominal pain.
Which of the following statements is not true?
A.) when a carbon atom in a C-H bond has somewhat more than its share of electrons, it is said to be reduced B.) hydrogenation reactions are oxidations, and dehydrogenation reactions are reductions C.) when a sugar molecule is oxidized to CO2 and H2O, the O2 molecules involved in forming the H2O are reduced D.) oxidation and reduction reactions always occur simultaneously
Antibody production is an indispensible part of our immune response, but it is not the only defense our bodies have. Which of the following is observed during an infection that is not a result of antibody–antigen interactions?
(a) B cell proliferation (b) aggregation of viral particles (c) systemic temperature increase (d) antibody secretion