Which of the following statements is most accurate? a. warm air is less dense then cold air b. warm air is denser then cold air c. warm air exerts more pressure on the land than cold air d. warm air sinks

A: Correct. Heat rises. Heat causes the molecules to move faster, which allows them to expand and move up.

this protocol provides a detailed procedure for co-immunoprecipitation (co-ip) to identify protein–protein interactions.

it also supports my hypothesis. if you rest first you can squeeze the clothespin more times. from the data i collected the average of the eight people concluded exercise makes your muscles more fatigued and less able to squeeze the clothespin compared to resting before squeezing.