TPA is a medicine that is used in ischemia strokes to burst a clot.
Answer:
1. Positive internal effects could make you feel better inside. Positive external effects could make you look more buff and muscular.
2. Negative internal effects are that it kills your organs. And Negative external effects are that some drugs can make you look weird.
Remember! Don’t do Drugs and stay safe!
Take some simple measurements, add a dash of algebra, and you basically have a way to measure an unknown mass.