The numerous functions of body cells have been determined from observation and careful study of experimental:

a. observations
b. happenings
c. mistakes
d. data

Which are fat-soluble vitamins? a. abcd b. abek c. abdk d. acdk e. adek

Minor illnesses: a.) decrease the risk of sids b.) increase the risk of sids c.) increase the risk of hospitalization d.) decrease the risk of allergies e.) increase the risk of allergies

This is one popular brand of exercise machine