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
Definition (by USGS). Eutrophication is a process whereby water bodies, such as lakes, estuaries, or slow-moving streams receive excess nutrients that stimulate excessive plant growth (algae, periphyton attached algae, and nuisance plants & weeds).rophic state. The level of eutrophication of a water body is expressed as a trophic state. The trophic state of a water body is derived from multiple parameters. Besides nutrient concentrations such as phosphorus and nitrogen, other parameters such as chlorophyll-a and secchi-depth are also used.