MICROANATOMY

Detailed explanation-1: -The main function of glandular epithelium is to produce and release different secretory products, such as sweat, saliva, breast milk, digestive enzymes, and hormones, among other substances.

Detailed explanation-2: -The three mechanisms by which exocrine glands release their secretions include merocrine, apocrine, and holocrine.

Detailed explanation-3: -On the basis of the variability and location of the secretory tissues in the plant body, the following are suggested: (1) In relation to their surrounding environment, the secretory tissues fulfill two very important ecological functions–protection against herbivores and pathogens and attraction of pollinators.