LIFE SCIENCE

Detailed explanation-1: -Pseudostratified columnar epithelium is a type of epithelium that appears to be stratified but instead consists of a single layer of irregularly shaped and differently sized columnar cells. In pseudostratified epithelium, nuclei of neighboring cells appear at different levels rather than clustered in the basal end.

Detailed explanation-2: -Pseudostratified epithelium is a type of epithelium which comprise only a single layer of cells. They are found in the linings of the trachea as well as the upper respiratory tract. Seminiferous tubule-Columnar cells.

Detailed explanation-3: -A pseudostratified columnar epithelium appears stratified, typically with nuclei located in at least two more-or-less distinct levels. But in fact every cell rests on the basement membrane, so the epithelium is technically “simple", in spite of appearances.