The IMViC series of biochemical tests are used to identify the Enterobacteriaceae.
a. true
b. false
Answer: a. true
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Carbon is incorporated into the skeletons of corals and other marine organisms through the process of _____________. The CaCO3 making up these skeletons, in turn, becomes a major component of sedimentary rocks after these organisms die
A. chemical weathering. B. subduction. C. biomineralization. D. inorganic mineralization. E. bacterial oxidation.
Spiders and certain other arthropods which lack jaws or mandibles are placed in a subphylum called
A. Agnathae. B. Amandibulata. C. blood suckers. D. chelicerates. E. mandibulates.
Rings of muscle in the digestive tract that can open and close, regulating the movement of food into or out of parts of the digestive system, are
A. rumens. B. sphincters. C. chymes. D. villi. E. uvulas.
Select the secretion systems that are found in both Gram-positive and in Gram-negative bacteria.
A. Type 1 B. Type II C. Type III D. Type IV