Which of the following elements is NOT correctly matched with its cellular function?
A) nitrogen — needed for amino acid synthesis
B) phosphorus — incorporated into nucleic acids
C) sulfur — used for synthesis of thiamin and biotin
D) magnesium and potassium — required as cofactors for enzymes
E) phosphorus — used for production of carbohydrates.
E
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All cancers reflect, at the most general level, a defect in
A) DNA replication. B) the formation of mitochondria. C) cell membrane structure. D) the cell cycle.
Which of the following describes the purpose of the Voices for Evolution project?
a. to provide perspectives in support of teaching evolution in public schools b. to evaluate the ideas presented by the intelligent design theory c. to conduct experiments based on the special creation theory d. to promote teaching multiple evolutionary theories in public schools
The mating system in which males and females mate with one or many of the opposite sex and form no pair bond is known as
A) monogamy. B) polygyny. C) polyandry. D) promiscuity.
Which is incorrect about Yersinia pestis?
A. exhibit bipolar staining B. gram negative rod C. produces coagulase D. has a capsule E. produces enterotoxin