In , bacteria return nitrogen to the atmosphere by converting nitrates to N2.
A. denitrification
B. respiration
C. nitrification
D. transpiration
E. nitrogen fixing
A. denitrification
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Which of the following types of cloning vector can carry the largest amount of foreign DNA?
A. Bacteriophage B. Bacterial artificial chromosome C. Plasmid D. Cosmid
All of the following are true of methanogens EXCEPT
A. they live in swamps and marshes. B. they produce methane from CO2 and H2. C. they live in the intestinal tracts of cows, humans, and termites. D. they require hot, acidic environments for methanogenesis. E. their biogas may contribute to global warming.
________ hormone is produced by the anterior pituitary and stimulates growth of muscle and bone throughout the body.
A. Growth B. Follicle-stimulating C. Adrenocorticotropic D. Prolactin
Some bacteria adhere to the surfaces of teeth via their glycocalyces and entrap other oral bacteria. This layer of polysaccharide and entrapped bacterial cells is called
What will be an ideal response?