What is true of genes? a. they are proteins that produce sections of dna which control the cell's activities. b. they are sections of dna that produce the proteins that control an organisms characteristics. c. they are the same as traits which show up in an organism if they are dominant. d. they are features that can be observed rather than measured. answer quickly on a time ! will mark !

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?

•hydration •dissociation •dissolving which one goes to which

Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative