The most prevalent type of antibody in the blood is
A) IgD.
B) IgM.
C) IgA.
D) IgG.
E) IgE.
D
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Antipodals and synergids are
A. produced in the female gametophyte. B. the result of double fertilization. C. what will fuse to form the endosperm. D. responsible for pollen tube formation. E. nonfunctional vestigal structures.
Gene therapy has been successful in curing ____
a. AIDS b. SCID c. diabetes d. hemophilia A e. cystic fibrosis
Identify the form of male genital cutting, common among some tribes in central Australia, which involves a slit being made on the lower side of the penis along its entire length and to the depth of the urethra.
A. Supracision B. Supercision C. Subincision D. Superincision
Microbes of the same species that live together and cooperate in some way are
A. mutualistic. B. colonial. C. commensal. D. opportunistic.