Which of the following is being used to replace hypochlorites in treating water because of the possibility of cancer-causing substances being produced?
A. chloramines
B. fluorine
C. sodium iodide
D. quaternary ammonium compounds
E. hydrogen peroxide
Answer: A
Biology & Microbiology
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If the codon consisted of only 2 nucleotides, _____ codons would be possible
a. 4 b. 8 c. 16 d. 32 e. 64
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__________ are multicelled heterotrophs without cell walls. Fill in the blank(s) with the appropriate word(s)
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Environmental conditions often vary spatially but do not tend to change over time in a given place
Indicate whether the statement is true or false
Biology & Microbiology
Which of the following is a behavioral response to environmental variability?
A) migrating to a different location B) acclimation C) endothermy D) "flagging" by trees
Biology & Microbiology