True or False: Some plant nutrients are more mobile in soil than others
A. true
B. false
A
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The study and reconstruction of phylogenies is
A. evolution. B. systematics. C. taxonomy. D. taxidermy. E. cladistics.
An endocervical swab was collected from a 26-year-old woman with a purulent discharge. The Gram stain revealed the following: • Many white blood cells (WBCs) • Moderate gram-negative diplococci • Moderate gram-negative coccobacilli • Few yeast Based on these findings, what would be the next course of action?
a. Report the isolation of Neisseria gonorr-hoeae. b. Work up the yeast. c. Report the Gram stain, and follow up with culture. d. Request a new specimen; this one is con-taminated.
What is an exception to the standard biological species concept used to define a species?
A. Natural interbreeding populations cannot be distinguished using this concept. B. Asexual species cannot be distinguished using this concept. C. Species that coevolved cannot be distinguished using this concept. D. Species that do not resemble one another cannot be distinguished using this concept.
Which of the following nonspecific mediators inhibits virus replication and cellular division while increasing some lymphocyte action?
A. chemokines B. TNF C. IFN D. IL-6 E. IL-1