Using amphetamines to counteract the effects of depressants
When a sperm and an egg are combined they create a zygote.
Either mechanical or physical. I would say physical though.
A) foods are physically broken down into smaller pieces!
your mouth brakes the food into small pieces and is the main part but chemical reaction also occurs,
the saliva in your mouth helps you swallow the food easily!
just imagine eating your food dry like doritos that will hurt! your saliva makes it a lot easier and painless!
Answer:
drinking polluted waters can cause bacteria to intect the body, and get the person sick, as well as infecting a cut that the person might have, since any nick in the skin is a open source for bacteria, since the skin is the first line of defense against bad bacteria.
Explanation:
