The mucosa of the cervical canal (endocervix) is composed of a single layer of mucin-secreting columnar epithelium, which covers the surface and the underlying glandular crypts. Isolated neuroendocrine epithelial cells of argentaffin type or argyrophil type are admixed with the normal endocervical cells.
Eutrophication can also occur as a result of natural events, such as climate change and geology. However, natural eutrophication is dramatically increased by human activity. The main difference between anthropogenic eutrophication and natural eutrophication is that the natural process is slow. Learn more about Botany
Mechanism of eutrophication[edit] Eutrophication arises from the oversupply of nutrients, which induces explosive growth of plants and algae. When such organisms die, they consume the oxygen in the body of water, thereby creating the state of hypoxia. According to Ullmann's Encyclopedia, the primary limiting factor for eutrophication is phosphate..