the density of mercury is 13.6g/cm^3 and that of alcohol 0.8g/cm^3. in which of these substances will a solid cube of brass (density is 8.6 * 10^3 kg/m^3) sink

Experiment scenario 2: a biology student wants to conduct a study of how the amount of food affects the weight gain for mice. i have set up four cages with a mouse in each cage. fill in the boxes that would allow the biology student to complete the study correctly

With i really need the correct answer!

Which lists the organs in the correct order as food passes from the mouth to anus?