Stress can cause the body to tense up as a defense mechanism. which body system would this affect

Which description shows the best balance of physical social and mental/edmonton health

What do scientist use to map human genome?

What is the main difference between trace elements and the main elements that make up the body? 1) main elements consist of heavier atoms. 2) trace elements are only needed in small amounts. 3) trace elements consist of heavier atoms. 4) main elements are only needed in small amounts.