Listen...I'm sick and tired of reading about the gleanings of half-wits that happen to notice a reaction just cause they caught it out of the corner of their eye or just because it happened to pop into their minds at the moment.
Smelly farts? That's a reaction! Not an evolutionary advantage! The evolutionary advantage isn't the reaction, it's the action! The digestion of various substances that can be integrated into the body. The greater the exposure or increased repetition to substances will increase the rate of integration and decrease the rate of expiation.
Listen. If you aren't going to do your homework...why should I even bother attempting to explain something simple to someone who refuses to see simple things cause they aren't a "big thing?"
Don't you know by now? All large things are made of small things! ALL OF THEM!!!
Make light the big things, make important the small, through this is making the big things important cause they are made up of small things. GET IT? GOT IT? GOOD! Now get back to work! Fucking slackers....>:\