Which of these organisms are consumers?
a. mushroom
b. worm
c. tree
d. cow
d. cow
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The minimum bactericidal concentration is the lowest concentration of a specific antimicrobial drug that kills _______ of a specific type of bacteria
A. 10% B. 50% C. 99.9% D. 100%
All of the following are true about plasmids EXCEPT:
a. Plasmids are small portions of circular DNA found in bacteria. b. Plasmids often encode for genes that carry toxins or antibiotic resistance. c. Plasmids can be transferred from one bacterium to another. d. Plasmids contain DNA and are found in the nucleoid region of bacteria
DNA polymerase assembles new strands
a. in a 5' to 3' direction only. b. in a 5' to 3' direction building one strand and a 3' to 5' direction building the other stand. c. in a 5' to 3' direction building the first half of a strand and a 3' to 5' direction building the second half of a strand. d. in a 3' to 5' direction building the first half of a strand and a 5' to 3' direction building the second half of a strand. e. in a 3' to 5' direction on the “old” 3' to 5' strand.
A rapid method of sympatric speciation in plants is `
A) polyploidy. B) genetic drift. C) the sudden creation of a geographic barrier. D) behavioral isolation.