Which of the following describes the order of emergence of various organisms on Earth?
a. land plants, first prokaryotes, animals, first eukaryotes, humans
b. first prokaryotes, first eukaryotes, land plants, animals, humans
c. animals, first prokaryotes, first eukaryotes, land plants, humans
d. humans, animals, land plants, first eukaryotes, first prokaryotes
Ans: b. first prokaryotes, first eukaryotes, land plants, animals, humans
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Which of the following is true regarding transformed cells that are plated on growth media containing ampicillin?
A. Each colony began with one antibiotic resistant cell. B. All cells in a single colony are resistant to the antibiotic ampicillin. C. Only the founder cell of a single colony is resistant to the antibiotic ampicillin. D. Cells that did not take up the plasmid will survive on the medium. E. Each colony began with one antibiotic resistant cell and all cells in the colony are resistant to the antibiotic ampicillin.
Which of the following is NOT a fruit?
a. banana b. pumpkin c. yam d. plum e. tomato
Which of the following drugs is a powerful CNS stimulant?
Select one: a. methamphetamine b. heroin c. marijuana d. alcohol e. All of the answer choices are powerful CNS stimulants.
The term for the use of microorganisms to restore damaged environments is
A. epidemiology. B. bioremediation. C. chemotherapy. D. serology. E. ecology.