Dimers of IgA are present in
A) breast milk colostrum.
B) saliva.
C) tears.
D) breast milk colostrum, saliva, and tears.
Answer: D
Biology & Microbiology
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Indicate whether the statement is true or false.
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_____ refers to a system in which individuals select their mates according to phenotype
A. Assortative mating B. Random mating C. Differential mating D. Sexual selection E. All of these
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The complement pathway that is activated by binding of C3b to cell surfaces is the
A. classical pathway. B. alternate pathway. C. C3 pathway. D. mucociliary pathway.
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Which of the following is not one of the four tissue types?
A. Squamal B. Nervous C. Connective D. Epithelial E. Muscle
Biology & Microbiology