1. to keep in touch with friends and family.
2. To stay up-to-date with news and current events.
3. To fill up spare time.
The answer is: pseudostratified ciliated columnar epithelial cells.
We can find these type of cells in the upper part of the trachea and bronchi, and through the whole upper respiratory tract (nasal cavity included).
Their job is to produce a mocous secretion (look up <em>cilia</em>) help us to stop external, microscopical, materials from entering our lungs, and so we can sneeze and cough them away.
Answer:
Out of the available options, I would say option A.
Huh? lol i rlly don’t know what that or this is but okay.
