Second and third class levers both have
a. the fulcrum between the effort and load
b. effort applied in the same place
c. two loads and fulcrums
d. the fulcrum at one end of the lever

Which one of the following statements about muscle is  mostaccurate?   a.  it weighs the same as fat.    b.  its weight in relation to fat depends on a person's fitness level.    c.  it weighs less than fat.    d.  it weighs more than fat

Aduty of the adult assigned to supervise a group of children is to a. check on the children at least every 20 minutes. b. keep the children within earshot. c. give the children a list of "don'ts" concerning behavior. d. conduct a name-to-face check when transitioning to the playground

According to the article, when our sleep/wake cycle breaks down, we are at an increased risk for all but which select one: a. respiratory illnesses b. dementia c. diabetes d. heart disease