Which of the following is extremely radiation resistant?
A. Aquifex
B. Deinococcus
C. Cytophaga
D. Thermotoga
Answer: B
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Which of the following best defines a cohort?
A) a group of individuals that inhabits a small isolated region within the range for the species B) all of the individuals that are annually added to a population by birth and immigration C) the reproductive males and females within the population D) a group of individuals from the same age group, from birth until they are all dead E) the number of individuals that annually die or emigrate out of a population
Varied coenzyme availability increases the diversity of enzymatic reactions in both biosynthetic and catabolic pathways possible in a cell
Indicate whether the statement is true or false.
Which of the following plant hormones promotes elongation of either the stems or roots in vascular plants? Select all correct choices
A. ethylene B. cytokinins C. auxin D. gibberellic acid E. abscisic acid
Auxin:
A. prevents cell elongation. B. is transported from young leaves to differentiated vascular tissue. C. has a net positive charge in the cytoplasm of cells. D. inhibits cellular production of PIN proteins. E. inhibits fruit ripening.