I think the system you are referring to is the muscular system
The blank is going to represent marijuana, LSD,PCP, and ecstasy. sited by google. hope that helped
6meters because 1 meter = 100 cm
I suppose you could use it to look for cells, because only living things have cells.
These antibiotics include penicillin and its derivatives and work by inhibiting the production of the bacterial <u>enzymes</u>