Treatment of drinking water by UV irradiation is effective at ________, but it does NOT remove ________

A) killing bacteria and eukaryotic pathogens / odor- and taste- altering organic compounds
B) killing viruses / bacteria and eukaryotic pathogens
C) removing order- and taste- altering organic compounds / viruses
D) killing bacteria / viruses and eukaryotic pathogens


Answer: A

Biology & Microbiology

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Blood from the systemic circuit is first received by the heart in the

a. coronary vein. b. left atrium. c. right ventricle. d. right atrium. e. left ventricle.

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If a child has blood type AB, he or she could NOT have been produced by which set of parents?

a. Type A mother and type B father b. Type B mother and type A father c. Type O mother and type O father d. Type A mother and type AB father e. Type B mother and type AB father

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____ is defined as the transmission of a signal from one animal that influences the behavior of a receiving animal.

Select one: a. Imprinting b. Dominance hierarchy c. Communication d. Circadian rhythm e. Operant conditioning c

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Which molecule is the product of transcription?

A) proteins B) DNA C) RNA D) amino acids E) nucleotides

Biology & Microbiology