The product of current and electrical resistance is a(n) ___________

Why does the body need vitamin B9?

a. For the synthesis of the neurotransmitters required for normal nerve cell communication, such as serotonin and dopamine b. For oxidation-reduction reactions and protein metabolism c. For energy production and the formation of red blood cells d. For the health of mucous membranes in the digestive tract and to aid absorption of iron and vitamin B6

To push a patient in a wheelchair through a door opening toward the patient, initially the patient is positioned facing:

a. the hinge side of the door. b. the latch side of the door.