Which type of strength training uses machine-generated forces to increase muscle strength and endurance?

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.

Why is it that people at first would be nice then they shut you down? (school matter)

During polarization,potassium has a blank charge,sodium has a blank ch arge ,and calcium has a b l ank. charge