Which of the following is a common incubation temperature for bacteria in a microbiology laboratory?
A) 0C
B) 100F
C) 98.7C
D) 37F
E) 37C
E) 37C
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Prokaryotes
A. lack a true nucleus. B. lack true DNA. C. use the cell membrane rather than ribosomes for making proteins. D. contain numerous organelles. E. are relatively benign cells incapable of harming organisms.
Intervening, untranslated nucleotide sequences are:
a. introns. b. anticodons. c. exons. d. transcriptons. e. poly-A tail
An action potential can best be described as a _____.
A. trigger zone B. kinetic activity C. brief reversal in the polarity of the electric gradient across the plasma membrane D. peak of energy that does not resolve to its former state E. brief increase in the polarity of the electric gradient across the plasma membrane
The Yellowstone to Yukon Conservation Initiative is a plan to
A) connect all of the national parks in the western United States. B) connect all of the national parks in the United States. C) connect parks in the United States and Canada with protected corridors where wildlife can travel safely. D) create a giant, fenced private land area between the national parks in the United States to create a protected zone for wildlife.