Question

pick the statement below that is true regarding microvilli and/or cilia. cilia are made up of microfilaments called actin which allow them to move. microvilli and cilia are only found at the apical membrane of certain epithelial cells. microvilli are usually found in the trachea and cilia are usually found in the small intestines. microvilli are made up of intermediate filaments that increase the surface area of the membrane.

Explanation:

Microvilli and cilia are often located at the apical membrane of specific epithelial cells. Microvilli increase surface - area and are made of microfilaments (actin), while cilia are made of microtubules and are involved in movement. Cilia are in trachea and cilia move substances along the surface, and microvilli are in small intestines for absorption.

Answer:

Microvilli and cilia are only found at the apical membrane of certain epithelial cells.