Brush-bordered columnar epithelial tissue is located in

The cell junctions called tight,adhering and gap junctions are found in

$A$ gland cell and an epithelial cell perform different functions because:

Which of the following statements are correct for the tissue shown in the image?
$I$ - Flattened cells with irregular boundaries
$II$ - Secretory cells
$III$ - Single-layered
$IV$ - Found in the walls of blood vessels and air sacs of lungs
$V$ - Functions as a diffusion boundary

The goblet cells of the alimentary canal are modified from:

Which of the following is incorrect regarding ciliated epithelium?