Acini in the parotid glands are almost exclusively of the serous type, while those in the sublingual glands are predominantly mucus cells. In the submaxillary glands, it is common to observe acini composed of both serous and mucus epithelial cells.ost animals have three major pairs of salivary glands that differ in the type of secretion they produce: 1  parotid glands produce a serous, watery secretion. 2  submaxillary (mandibular) glands produce a mixed serous and mucous secretion. 3  sublingual glands secrete a saliva that is predominantly mucous in character.
Writing is the physical manifestation of a spoken language. It is thought that human beings developed language c. 35,000 BCE as evidenced by cave paintings... Writing is the physical manifestation of a spoken language. It is thought that human beings developed language c. 35,000 BCE as evidenced by cave paintings from the period of the Cro-Magnon Man (c. 50,000-30,000...
Print-rich environments Literacy-rich play settings Mediated writing Formal curricular Definition of Emergent Literacy Refers to the fact that young children learn about books, print, and writing long before they can read and write or before going to school.This term was first used in 1966 by Marie Clay, and developed further from the 80s.efers to the fact that young children learn about books, print, and writing long before they can read and write or before going to school. This term was first used in 1966 by Marie Clay, and developed further from the 80s.