Floor wax is often made from a substance called carnauba wax, which is derived from the leaves of the carnauba palm, not from cows. However, some floor wax products may contain beeswax or other natural waxes. It's important to note that traditional floor wax does not come from any part of a cow.
No part. Chickens come from chickens, not cows.
Loin
No part. Only the gelatin, which comes from the connective tissue of cattle, is an ingredient used to make chewing gum.
The udder. The skin, which has hair, is also a body part that shows that a cow is a mammal.
Mouth!
The head
Angus beef does not come from any part of any cow, but comes from a BREED of cattle (or cows) called Angus.
http://ask.metafilter.com/27259/How-much-meat-is-there-on-a-cow
The part of the cow that fajita meat comes from is the plate. Traditionally, fajita meat is made from skirt steaks which is made from the plate of the cow.
The brain.
The upper part of the cow.
They come from where you might think, the head of the cow on either side, attached to the cheekbones.