The ________ of a population is the time it takes for the cells to double in number.
A. binary fission
B. exponential growth
C. generation time
D. arithmetic growth
E. log phase
Answer: C
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Which type of fish is likely to produce the smallest number of progeny from each mating?
A. An oviparous species B. An ovoviparous species C. A viviparous species 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 strategies for development? 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? 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?
In transcription,
a. several proteins can made from the same DNA molecule. b. promoters are at the beginning of a gene. c. messenger RNA is produced. d. a specific enzyme called RNA polymerase is required. e. all of these are true.
Chemotaxis is a process by which bacteria ________.
A. respond metabolically to the presence of autoinducer molecules B. move on solid surfaces by means of type IV fimbriae C. avoid phagocytosis D. move toward an attractant or away from a repellent
Which of the following are the fundamental embryonic tissues called the "germ layers"?
A. Tissues, organs, and organ systems B. Mesoderm, exoderm, and hydroderm C. Ectoderm, endoderm, and exoskeleton D. Mesoderm, muscle, and tissue E. Mesoderm, endoderm, and ectoderm