Transport layer protocols interact with lower layer protocols in that they

Transport layer protocols communication with lower layer protocols in that they segment lower layer protocols into smaller chunks that fall within the network connections maximum transmission unit or as called as MTU. Transport layer protocols execute a discovery routine upon creating a connection with the network. Thereafter, the protocols segment each data unit as needed until departing the connection. 

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion.   lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection.   sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin.   goblet cells - secrete mucus for protection.

The answer is one amu.