An organism that requires chemical nutrients which serve as final electron acceptors is a(n)
A) chemotroph.
B) phototroph.
C) lithotroph.
D) autotroph.
E) aerobe.
A
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E are _______ major families of RNA containing viruses that infect vertebrates
A. 2 B. 5 C. 7 D. 13
While flipping through an agriculture products catalog, you come across the following advertisment, "The Centralized Ripening System—makes large scale hormone distribution even easier!". What hormone does this product distribute?
A. auxin B. abscisic acid C. cytokinin D. ethylene E. gibberellin Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about fruit ripening? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Anthers produce
a. ovules. b. seeds. c. megaspores. d. nectar. e. none of these.
Uropathogenic E. coli can use all the following virulence factors to establish infection in the urinary tract except
A) proteases and toxins. B) antigen mimicry. C) pili and adhesions. D) siderophores. E) invade bladder cells to become intracellular.