The leaf arrangement illustrated in the accompanying figure is:
a. pinnate.
b. alternate.
c. compound.
d. whorled.
e. parallel.
b
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Laser tweezers are used for
A) testing the purity of a culture. B) isolating individual cells. C) separating aerobes from anaerobes. D) enhancing the growth of fastidious organisms.
The technique of Sanger sequencing takes advantage of the fact that dideoxynucleotides (nucleotides in which the 3' hydroxyl group is absent) act as
A. palindromic sites. B. restriction sites. C. chain terminators. D. probes. E. none of these
The pH of stomach acids is usually
a. 2. b. 4. c. 7. d. 10. e. 12.
In regards to altruism, what way are humans like vampire bats?
A. Their altruism is based on haplodiploidy. B. They are both Chiroptera. C. Their altruism is based on kin selection. D. They engage in reciprocal altruism. Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about altruism? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection 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?