How much of our brain do we actually use? and how could one unlock the remaining percentage?

Which statement is true about common childhood infectious disease? a. children should always be given antibiotics to treat an infectious illness. b. frequency of infectious illnesses usually increases as children grow older. c. having a minor infectious illness weakens a child's immune system. d. infectious illnesses are usually mild and require no medication.

Which of these is the muscular tube that leads from the mouth to the stomach? a.epiglottisb.uvulac.soft palated.esophagus

Acne is caused by a. a strict diet b. eating at night c. hormones d. dry skin select the best answer from the choices provided. a b c d