Which of the following factors is NOT a
density-independent factor?
a. earthquakes
b. snowstorms
c. competition
d. hurricanes
e. tsunamis
C
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A bacterial cell has a nonsense mutation that prevents it from producing a functional sigma subunit for RNA polymerase. Inability to synthesize a functional sigma subunit would have the most direct effect on
A. transcription initiation. B. transcription elongation. C. transcription termination. D. translation initiation. E. translation termination. 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 RNA polymerase? Consider Possibilities · Consider the different answer options. Which can you rule out? 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?
What structure does blood flow into during sexual excitation of a male?
a. testes b. epididymus c. vas deferens d. prostate gland e. penis
The pyramid of energy is
a. a demonstration of the first law of thermodynamics. b. a result of the decline in the energy available as energy travels through the trophic levels. c. fundamentally different from the pyramid of biomass and the pyramid of numbers. d. just one of the manifestations of competition. e. is a calculation of the energy gained at each level.
The site of implantation of a blastocyst is the
A. myometrium. D. vagina. B. oviduct. E. ovary. C. endometrium.