The fetus is not rejected because
A. it is too small.
B. it is in an immunologically privileged site.
C. the father is immunosuppressed.
D. it has no antigens.
E. it is in an immunologically privileged site AND the father is immunosuppressed.
B
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What antibody predominates during secondary antigen exposures?
A. IgA B. IgG C. IgE D. IgD E. IgM
A foundation species ____
a. provides a foundation for parasites b. has mutualistic relationships with many species c. defines the nature of a community d. lives in many different habitats e. provides protection for species in its community
. “Seasonal,” “daily,” and “monthly” all describe what
type of reproductive isolating mechanism? a. behavioral b. temporal c. mechanical d. gamete e. ecological
Type I hypersensitivity reactions are also commonly known as (allergies/autoimmunities/inflammation).
Fill in the blank(s) with the appropriate word(s).