If a magnet is broken into two pieces, what happens to the magnetic poles? One piece will have a north pole, while the other piece will have a south pole.
Each piece will still have a north pole and a south pole.
Each piece will have only a north pole.
Both pieces will no longer have any magnetic poles

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere

Aresearcher created three groups based on participants bmi: normal weight, overweight and obese. the hypothesis being tested is that the three groups differ in the mean number of artificially sweetened drinks consumed weekly. which statistical test might the researcher use, assuming a reasonably normal distribution of values.

Explain the significance of meiosis in sexual reproduction