When doing experiments with bacteria,
A. it is usually not necessary to standardize which stage of growth is used.
B. it is best to use colonies as all the bacteria in a colony are at the same stage of growth.
C. it is best to use bacteria from the same stage of growth.
D. the age of the bacteria is not important.
C
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Insulin is a product of the
A. pancreas. B. stomach. C. brain. D. kidney. E. liver.
Cytokines released by white blood cells that activate T cells and B cells, provoke an inflammatory response, and induce fever are called
A. histamines. B. complement proteins. C. interleukins. D. interferons. E. epinephrines.
Slime molds are classified with protozoa in part because they have (flagella/pseudopods/shells)
What will be an ideal response?
Which of the following statements provides the most significant support for the idea that viruses are nonliving chemicals?
A) They are not composed of cells. B) They are filterable. C) They cannot reproduce themselves outside a host. D) They cause diseases similar to those caused by chemicals. E) They are chemically simple.