1. Organism
2. An organ is a part of an organism that has a specific function and is self-contained. An organ system is a group of organs that work together in order to function.
3 and 4 depend on the organ system you are working on.
Alcohol affects your ability to make decisions and think clealry, therefore affecting the choices you make. it very much affects your judgement.
<span />
They are all fused together I hope I helped you
