Alcohols are used for
A. disinfection.
B. sterilization.
C. antisepsis.
D. both sterilization and disinfection.
E. both antisepsis and disinfection.
Answer: E
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Which of the following statements is true in prokaryotic organisms?
A. Transcription and translation both occur in the cytoplasm. B. Prokaryotic organisms do not carry out transcription or translation, only eukaryotic cells do. C. Transcription occurs in the nucleus, and translation occurs in the cytoplasm. D. Transcription and translation both occur in the nucleus.
Which feature is an evolutionary novelty of hexapods?
A. Jointed appendages B. Mandibles C. Chitinous exoskeletons D. Wings E. Antennae
Bacteriophages may reproduce using a(n) __________ pathway in which viral DNA becomes part of the host
chromosome. Fill in the blank(s) with the appropriate word(s).
During mating of earthworms, which secretory organ produces mucus that glues two worms together while they swap the sperm?
A. Clitellum B. Coelomic fluid C. Chaetae D. Gills E. Radula