Do you think red blood cells can reproduce themselves? why or why not?

They don't reproduce, as far as I know. They are produced in bone marrow.

Red blood cells font reproduce. But there’s an everlasting supply of red blood cells from the bone marrow where they are born from the hematopoietic stem cells.

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.