Good before and after pics, thanks.

How was this experiment conducted (in vitro, petri dish)? How long did it take for the worm to die? Were you able to calculate the volume of the med in relation to the worm? Does this make sense what I'm asking? Anything in a large portion will eventually kill something, but in a dosage it may or may not when it is in the body (in vivo).

Is the before pic before you took the med? And the after pic of another worm, after you took the med?