You can find your pulse in either wrist (I think) and on the side of your neck if you push a little.
Biology is the study of living things or organism. It is a science of life. And it is a great affect of human development because and humans possesses both genetic and environmental surroundings. Genes are the first inheritance in all creatures that effects the appearance or purpose of an organism in definite manner.
#1 would be A, #2 would be false, as narcotics are incredibly addictive. #3 is absolutely true, as abuse of almost any medical thing can be life threatening.
An example of a moderate physical activity would be walking briskly!