Once bound by antibodies, an antigen is effectively opsonized and thus rendered more
A) to the complement cascade.
B) susceptible to phagocytosis.
C) likely to agglutinate.
D) to be recognized by natural killer cells.
E) likely to block the activity of a pathogen.
Ans: B) susceptible to phagocytosis.
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In the cultivation of microaerophilic and anaerobic bacteria,
A. a(n) candle/anaerobe jar is sufficient. B. atmospheric oxygen in a(n) candle/anaerobe jar is converted to water. C. a packet containing chemicals that generate carbon dioxide and hydrogen is used in a(n) candle/anaerobic jar. D. oxidizing agents are incorporated into the media that react with oxygen.
Multilevel selection/cooperation has been documented in ________
A) bacteria B) plants C) humans D) All of the above.
A(n) ________ is an example of a chordate that is not a vertebrate
A) lancelet B) echinoderm C) bird D) fish
Most populations are divided into subpopulations
Indicate whether the statement is true or false