What are the first antibodies produced by a plasma cell?
A. IgM
B. IgA
C. IgE
D. IgD
E. IgG
Answer: A
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Bioactive specialized compounds are ____
a. synthesized in some plants as part of basic metabolism b. only synthesized in plant leaves c. molecules that attract herbivore pollinators d. synthesized in floral structures to attract pollinating insects e. only synthesized in plant roots
Zero population growth is achieved when:
a. a population reaches the carrying capacity of the environment b. number of births is balanced by number of deaths c. births exceed deaths d. immigration exceeds migration e. migration is prevented
Almost all enzymes are
a. carbohydrates. b. proteins. c. lipids. d. nucleic acids. e. amino acids.
The alternating contractions of the _____ and _____ ______ move the worm
Fill in the blank(s) with the appropriate word(s).