In the trachea there is a layer of epithelial cells called the respiratory mucosa, which contains
specialized cells that produce mucus. These
specialized cells are called goblet cells and the
function of the mucus is to keep the trachea
moist. What is this an example of?

In which of the following ways is the function of the surface of a microsphere similar to the function of an actual cell membrane? a.both make it possible for the conditions in the interior to be different from the conditions outside. b.both provide a barrier that keeps water from flowing across it so the interior remains dry. c.both separate the rna that forms in the interior from any rna that might form in the environment. d.both can actively move molecules into the interior or out into the surrounding environment.

This question is only for applicants to scholars for medicine or scholars for dental medicine: what aspects about medicine (or dental medicine) intrigue you? describe how these aspects influence your life. (100-650 words)

Aquaternary consumer species would be expected to have a smaller population than a secondary consumer species. select the best answer from the choices provided t f