Place the following terms in order from smallest (and least complex) to largest and most
organism, cell, tissue, organ system:
complex: organ,
(least complex) (most complex)

The order goes like this:
Cell, tissue, organ, organ system, and if you want to add, organism

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.