In a hydroelectric power plant, water is stored high above a turbine. as it falls, the water spins the turbine blades to generate electricity. which form of energy does the stored water have? elastic potential energy gravitational potential energy radiant energy vibrational energy nextreset

Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

How are the testes and ovaries similar? a. both produce sex cells. b. both connect internal reproductive organs to the exterior. c. both transport sex cells from their site of production. d. both store mature sex cells.