Which example best demonstrates the principle of specificity?
push-ups to gain flexibility
pull-ups to decrease body fat
bicep curls to increase muscular strength in biceps
repetitions of heavy weights to increase muscular endurance

Trustworthy health-related websites should be frequently reviewed by medical professionals, even if the content doesn't change. select the best answer from the choices provided. t f

Antibiotics are given when an std is caused by a virus. true or false

What typically happens when a family member has a problem with alcohol or drugs? adults in the family are affected more than children children in the family are affected more than adults. the entire family is affected. no one in the family is affected.