Q: Answer the question

Tommy cut his finger. His body needed energy to help heal the cut. Where did the energy come from to heal the cut?

A: from the food he ate


Q: Answer the question

The skin is the largest organ in the human body. Why is skin considered to be an organ?

A: It is made of tissues.


Q: Answer the question

New engine technology has helped cars get more mileage per gallon of gas. Since gasoline comes from oil, this technology will affect the world supply of oil by

A:
extending the time that oil will be available for people to use.