Mutations
a. increase genetic diversity
b. decrease genetic diversity
c. have no effect on genetic diversity
a
Biology & Microbiology
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The greatest cause of extinction of species is
(a) runoff. (b) habitat loss. (c) invasive species. (d) evapotranspiration
Biology & Microbiology
The embryonic shoot and root are separated by a tiny section of embryonic stem, called the ____
a. plumule b. hypocotyl c. radicle d. cotyledon e. coleoptile
Biology & Microbiology
The most abundant class of antibodies in serum is ________.
A. IgG B. IgE C. IgD D. IgA E. IgM
Biology & Microbiology
The Acari
a. Have a distinct head, thorax, and abdomen b. Are of great economic and medical importance c. Are a limited and well known order of about 2,000 species d. Are all terrestrial e. All of the choices are correct
Biology & Microbiology