Bacteria are found in all of the nutritional classes of organisms.
a. true
b. false
Ans: a. true
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Human bites and animal bites caused by ________ and _________, respectively, can ultimately lead to an underlying bone infection
a. Eikenella corrodens; Actinomyces spp. b. Pasteurella multocida; Peptostreptococcus spp. c. Prevotella spp.; S. aureus d. E. corrodens; P. multocida
A microbial mat
A. is a form of biofilm. B. is poorly organized. C. contains only obligate anaerobes. D. is constructed to prevent interactions between the various layers of microorganisms. E. is a form of biofilm AND is poorly organized.
In herbaceous plants, the stress-related closing of stomata is regulated by ____
a. sunlight b. ion concentrations in the xylem c. CO2 concentration d. O2 concentration e. abscisic acid
Which of these studies is a meta-analysis?
A) a study that examined a link between nitrogen in the soil and yellowing of leaves B) a study that summarized research reports from many laboratories around the world indicating a relationship between a diet high in plants and colon cancer C) a study that reported on seed germination rates at many different temperatures D) a study that related transpiration rates in a number of different plants to weather conditions over many areas in North America