A fluid that keeps the mouth
moist and makes food soft and
wet when chewing
used for biting and chewing
List
A. mouth
B. tongue
C. teeth
D. saliva
E. Villi
F. esophagus
G. stomach
H. small intestine
I. large intestine
a hollow tube that is about
four times longer than a
person's helght
4. last section of the digestive
tract; a hollow tube where
water is removed from food
finger-like structures that line
the small intestine
& place where digestion begins
pushes food to the back of
the mouth to be swallowed
-shaped muscular sac that
stores food and helps to
digest it
9. a muscular tube that
connects the back of the
mouth to the stomach

D . Saliva

Explanation: Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before food reaches the stomach.

May consider a group  g=({0,1},+)g=({0,1},+)where  ++  will work as the xor operator like we work in boolean algebra. note here, that ‘00’ and ‘11’ are not the usual 0 and 1 that we work with everyday. the elements are  called  ‘00’ and ‘11’ and  may not mean  zero (nothing) and one (single). ‘00’ is the identity for the given binary operator +, meaning that any element operated with ‘00’ gets us that element itself.  for a set  ss  in  g′g′  having more elements than just  {0,1}{0,1}  the values for  a+b∈sa+b∈s, such that  a∈s,b∈sa∈s,b∈s, have to be first defined, only then can you determine the value of  1+11+1. the answer could possibly have been  22  if oanswer is25,000