Serological testing is based on the fact that
A) all bacteria have the same antigens.
B) antibodies react specifically with an antigen.
C) the human body makes antibodies against bacteria.
D) antibodies cause the formation of antigens.
E) bacteria clump together when mixed with any antibodies.
B
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Antheridia and archegonia are the two types of ____ present in bryophytes
a. sporophytes b. sporangia c. gametangia d. gemmae e. thalli
A climax community is ____
a. relatively stable b. a result of primary succession only c. a result of secondary succession only d. defined by high species diversity e. dominated by r-selected species
What are the two prokaryotic domains?
A. Archaea & Bacteria B. Archaea & Eukarya C. Protista & Archaea D. Eukarya & Bacteria
All atoms possess the ability to do work. The term that is defined as the ability to do work is:
A. space B. matter C. energy D. molecules