Every experiment requires a(n) ____ as a baseline for comparison, a(n) ____ variable to test, and a(n)___ variable to measure.
a. independent (predictor), dependent (outcome), control group
b. control group, dependent (outcome), independent (predictor)
c. control group, independent (predictor) ,dependent (outcome)
d. none of the above
c. control group, independent (predictor) ,dependent (outcome)
You might also like to view...
Suppose that you performed a version of the Hershey and Chase experiment, this time using 32Plabeled
viruses that insert their double stranded DNA into the DNA of the cells that they infect. The viral DNA is then treated as part of the cell's own DNA and is replicated during DNA replication and passed on to daughter cells when the cell divides. You infect a population of cells with the 32P-labeled viruses, then let the infected cells go through two generations of cell divisions. If you then examine the cells, you should find 32P-labeled DNA in
a. none of them. b. about of them. c. about of them. d. about of them. e. all of them.
Coal consists primarily of compressed remains of the ________ that dominated Carboniferous swamp forests
a. seedless vascular plants b. conifers c. flowering plants d. [seedless vascular plants] and [flowering plants]
In the ocean, swimming organisms that can move at will in the water column are referred to as
A) periphyton. B) zooplankton. C) megaplankton. D) nekton.
Stanley Miller's 1953 experiments supported the hypothesis that _____
A) life on Earth arose from simple inorganic molecules B) organic molecules can be synthesized abiotically under conditions that may have existed on early Earth C) life on Earth arose from simple organic molecules, with energy from lightning and volcanoes D) the conditions on early Earth were conducive to the origin of life