The structure of the respiratory epithelium changes along the respiratory tract. in addition to mucous cells, what other type of cells are found lining the nasal cavity, nasopharynx, and the superior portion (trachea and bronchi) of the lower respiratory system?

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 cilia) help us to stop external, microscopical, materials from entering our lungs, and so we can sneeze and cough them away.

answer; i believe that the correct answer is (d); // supercontinent

new communications technology has affected the way social movements are organized because nowadays, social movements rely on social networks and the media to get different people with a similar way of thinking in contact, and thus, get them to mobilize for a greater cause.

individuals only participate in collective action when they feel identified with it. is in this aspect that social media becomes relevant, because it guarantees communication among all individuals and organizes the social actions that are going to be carried out, i.e., the social movements.

in addition, being covered by the media is important to validate the message and make it relevant in the social agenda, as well as to reach more people who can share interests, appealing to public sympathy for their cause.

in conclusion, it is by social networks and social media that social movement is given birth; by connecting different individuals with similar ideas and organizing them to mobilize for a greater cause.