Are very long apical projections of epithelial plasmalemma that are incapable of movement.

Answer;

-Stereocilia

Explanation;

-Stereocilia are not true cilia, they are very long projected microvilli, incapanble of movement on their own, in ear and male reproductive tract.

-Stereocilia are different from cilia, even though they have a similar name. They are more closely related to microvilli, and some may well consider stereocilia to be a variant of microvilli. They share some features of microvilli. However, stereocilia’s distinctive characteristics are their length and lack of motility. Stereocilia are basically apical modifications of the cell.

-Stereocilia are mechanosensing organelles of hair cells, which respond to fluid motion, or changes in fluid pressure in numerous types of animals for various functions, primarily hearing.

b. to discover aspects of the natural world.

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