Explanation : Statement I is true as goblet cells are indeed unicellular glands. They secrete mucus and are found in the lining of the intestines and respiratory tracts, where the mucus acts as a protective layer. Statement II is also true. Earwax, also known as cerumen, is a secretion from the ceruminous glands in the ear canal, which are a type of exocrine gland. Exocrine glands are glands that secrete their products onto body surfaces or into body cavities.