Question

fill in the blanks
1) the mucus protect the inner lining of the__________.
2) the inner wall of the small intestine has folds called__________.
3) the saliva contains enzyme_________that breaks down the starch.
4)the process in which the undigested food is removed from the body is called_________.​

Answer 1

Answer:

1. stomach
2. plicae circulares
3. ptyalin
4. excretion

Answer 2

Answer:

1_stomach

2-plicae circulares whose surface contains villi& microvilli

3-ptyalin or amaylase

4- egaestion