The taxonomy of the methanogens is based on
A) phenotypic analysis.
B) phylogenetic (comparative nucleic acid sequencing) analysis.
C) phenotypic and phylogenetic analyses.
D) neither phenotypic nor phylogenetic analysis.
Answer: C
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Select the exception. a. heroin b. caffeine c. nicotine d. cocaine e. amphetamine
Cordgrass (Spartina), glassworts (Salicornia), and spearscale (Atriplex) are types of plants commonly found in
A) bogs. B) salt marshes. C) mangroves. D) riparian forests.
Which of the following is NOT a use for biotechnology?
A) Identifying human fetuses with particular genetic diseases B) Producing effective and safe vaccines C) Altering food plants to increase yields D) Producing large quantities of particular human proteins E) Altering the intelligence levels of newborn infants
The vitamin necessary for fibrinogen and prothrombin formation (found in green vegetables and released by intestinal bacteria) is
A. vitamin E. B. vitamin B. C. vitamin K. D. vitamin D. E. vitamin A.