The term obligate refers to
A. using light for energy production.
B. using oxygen for metabolism.
C. existing in a very narrow niche.
D. using chemicals for energy production.
E. the ability to exist in a wide range of conditions.
Answer: C
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Lipids are the only class of macromolecules that contain:
A. amino acids. B. nucleotides. C. fatty acids. D. phosphate groups. E. monosaccharides.
Biosafety Level 4 agents:
a. include those that are the common agents of infectious disease. b. require only standard good laboratory technique. c. include M. tuberculosis, M. gordonae, and Brucella. d. require the use of maximum containment facilities.
Conservation biology includes
a. a survey of biological diversity. b. maintaining biodiversity to benefit human populations. c. ecological considerations of diversity. d. an effort to maintain biodiversity. e. all of these
A geographic barrier is needed for ______ speciation.
a) allopatric b) sympatric