A genus in the family Enterobacteriaceae that is a major pathogen of crop plants is ________.
A. Erwinia
B. Shigella
C. Yersinia
D. Proteus
Answer: A
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Kingella spp. can be distinguished from Neisseria spp. by its:
a. negative test for catalase. b. positive test for lactose fermentation. c. positive test for catalase. d. negative test for oxidase.
You’ve just finished a big meal and are
relaxing in front of a fire reading your favorite book. The ___ division of your ___ nervous system is at work.
a. parasympathetic--autonomic b. parasympathetic--somatic c. sympathetic--autonomic d. sympathetic--somatic e. autonomic--somatic
What are considered to be the two most important factors that have been involved in past mass extinctions?
a. disease and parasites b. fire and weather events c. glaciers and earthquakes d. environmental and biological factors e. plate tectonics and climatic factors
The order of bases in a gene is copied to make a/an:
A) amino acid. B) mRNA. C) gene. D) ribosome.