A term synonymous with antibody is
A. antigen.
B. epitope.
C. determinant.
D. immunoglobulin
D
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The malolactic fermentation of wine is performed by
A. Lactobaccilus. B. Saccharomyces. C. Leuconostoc. D. Aspergillus.
Zonation within a community is typically the result of differences in the
A) patterns of predation among species within a community. B) rates of reproduction among species within a community. C) patterns of competition among species within a community. D) physical characteristics of the environment across a spatial gradient.
Which cells in the testes secrete testosterone?
a. Sertoli cells b. luteinizing cells c. glycoprotein cells d. interstitial cells e. sperm cells
Plants with a dominant sporophyte are successful on land partly because
A) having no stomata, they lose less water. B) they all disperse by means of seeds. C) diploid plants experience fewer mutations than do haploid plants. D) their gametophytes are completely enclosed within sporophyte tissue. E) eggs and sperm need not be produced.