An organic compound that is a principal component of all cells = Protein

body system the breaks down food and absorbs nutrients

very eager to do or achieve

Passing of characteristics from parents to children

Using stem cells to treat or cure medical disorders.

transferring blood from one person to another

A system that protects the body from foreign organisms by

fighting them = digestive system

a piece of paper written by a doctor that lets you get medicine at the pharmacy

one who gives something = donor