The table shows the results of a study testing the effectiveness of a migraine medication. why was one group given a sugar tablet? select one: a. to provide a variety of treatments b. to include a control group to include a control group c. to have an experimental group d. to give the body additional nutrients

Name the type of chemical that speeds up digestion

Ricardo notices that when he plays soccer in the rain, his ball does not seem to go as far after a kick. what is the best scientific question that ricardo could ask about this observation? is soccer better played in the rain or sun? how does rain affect the distance a soccer ball can travel? how does rain affect the speed of a soccer ball? is soccer affected by the rain?

Explain why ecosystem diversity results in species diversity in a healthy biosphere