Antibiotic resistance can occur when ________
A) bacteria populations are repeatedly exposed to the same antibiotics
B) patients use antibiotics that are expired
C) patients with bacterial infections are denied access to antibiotics
D) antibiotics are artificially produced in a research facility
A
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Which of the following is most true regarding the Big Bang Theory?
A. It resulted from the ignition of an enormous concentration of hydrogen gas. B. The theory has been disproved in recent years. C. The universe began expanding from a single point about 14 billion years ago. D. The theory applies only to the Milky Way Galaxy. E. All of the matter in the universe was created in an instant.
The major difference between richness and equitability is that
A) richness is a measure of biodiversity and equitability is a measure of competition. B) richness expresses how complicated the organisms that make up an ecosystem are, while equitability only considers the number of organisms. C) richness is a count of the number of species present in an ecosystem and equitability describes how evenly distributed the populations of each species are. D) richness describes the number of r-selected species in an ecosystem and equitability expresses the number of K-selected species in an ecosystem.
What process intensified arguments about Earth's age because it would require long periods of time to
occur? a. Uniformitarianism b. Catastrophism c. Natural Selection d. Biblical creation
Which of the letters represents the summer solstice for the Northern Hemisphere?
A) A
B) B
C) C
D) D