The grouping Protista is
A. A group of exclusively microscopic organisms
B. A convenient grouping of eukaryotic organisms that have some similarity but are hard to classify
C. a valid evolutionary grouping that includes organisms that are more closely related to each other than to other organisms
Answer: B
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As pertaining to the spread of antibiotic resistance in bacteria, which of the following terms is not directly related to the others?
A. Intercalate B. Integron C. Integrase D. Cassette
Mechanoreceptors mediate the sense(s) of
a. touch. b. muscle stretch. c. hearing. d. balance. e. all of these.
If a protein-coding gene is identified, its function can be studied by using RNA interference to
__________. a. produce a RFLP b. produce an EST c. turn the gene on d. turn the gene off e. induce a mutation
A single B lymphocyte can recognize multiple antigenic determinants.
Answer the following statement true (T) or false (F)