A scientist performs a controlled experiment. This means that
A) the experiment is repeated many times to ensure that the results are accurate.
B) the experiment proceeds at a slow pace to guarantee that the scientist can carefully observe all reactions and process all experimental data.
C) two versions of the experiment are conducted, one differing from the other by only a single variable.
D) one experiment is performed, but the scientist controls the variables.
Answer: C
You might also like to view...
The global patterns of atmospheric circulation and precipitation occur because ofÂ
A. rising masses of warm air and sinking masses of cool air. B. the greenhouse effect. C. global differentials in sea surface temperature. D. the cooling of the land. E. winds blowing off of the world's major mountain chains.
The genetic makeup of an organism is its
(a) phenotype. (b) genotype. (c) locus. (d) gamete.
Where does translation occur in eukaryotes?
A. Both in the nucleus and in the cytoplasm B. In neither the nucleus nor the cytoplasm C. In the nucleus only D. In the cytoplasm only
Individuals of a __________ share a gene pool. Fill in the blank(s) with the appropriate word(s)