Answer:
Mucous film, layer lining body depressions and waterways that lead to the outside, predominantly the respiratory, stomach related, and urogenital lots. Mucous films line numerous plots and structures of the body, including the mouth, nose, eyelids, (windpipe) and lungs, stomach and digestion tracts, and the ureters, urethra, and urinary bladder.
Step-by-step explanation: