Which of the following is an example of the endocrine system maintaining homeostasis?

A. Detecting a pain stimulus and sending a signal to the spinal cord to perform an automatic response
B. Discharging an excessive amount of hormones in the blood and not sending a signal to stop production
C. Sending a message to the pituitary gland to start producing a hormone when the levels in the body are too low
D. Using sense organs to get information about the outside world and direct an appropriate body response release

Which statement best describes the flow of energy in this scenario

Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.