GENERAL HISTOLOGY

Detailed explanation-1: -Serous glands produce a watery secretion; sweat glands of mammals are of this type. Sebaceous glands secrete oil, ceruminous glands secrete wax, mammary glands secrete milk, poison glands secrete various toxins, and scent glands secrete a variety of odoriferous substances.

Detailed explanation-2: -In routine light microscopy, serous cells are distinguished by basophilic basal cytoplasm, a centrally-located nucleus, and variously-staining secretory vesicles (zymogen granules) in apical cytoplasm. These features are all associated with organized mass production of protein for export.

Detailed explanation-3: -The correct answer is the Parotid gland. The Parotid gland is the salivary gland that produces a secretion that is mainly serous.

Detailed explanation-4: -In humans and most other mammals, the parotids produce a serous secretion (i.e., low glycoprotein content), the sublingual and submandibular glands produce a seromucous secretion, and the minor salivary glands produce a mucous secretion.