The gram-negative bacillus associated with abscesses from dog and cat bites or scratches is
A. Salmonella typhimurium.
B. Yersinia enterocolitica.
C. Pasteurella multocida.
D. Brucella suis.
E. Francisella tularensis.
Answer: C. Pasteurella multocida.
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Some alleles in the heterozygous state are beneficial, whereas in the homozygous state they are harmful
A. true B. false
All of the following statements about bacteria
are correct with one exception. Select the exception.
a. Bacteria are always single-celled organisms. b. Bacteria have DNA that is not enclosed in a nucleus. c. All bacteria are eukaryotes. d. Some bacteria can live in extreme environments. e. Some bacteria are producers while others are consumers.
How long does it take a sperm to reach the
oviduct?
a. 3 minutes b. 30 minutes c. 3 hours d. 3 days e. 30 days
Haploid Cells
What will be an ideal response?What will be an ideal response?