posted by Anonymous .
Role of microvilli of cells of kidney tubules?
Role of cilia in cells lining trachea?
Since this is not my area of expertise, I searched Google under the key words "microvilli 'kidney tubules'" to get these possible sources:
You can do the same with "cilia trachea". In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.
I hope this helps. Thanks for asking.