Which gland secretes chemicals through simple diffusion?

Which of the following statement$(s)$ is/are correct regarding compound epithelium?

Write a detailed note on Epithelial tissue,giving the types of animal tissue.

$A$ student was given a sample of tissue. He observes and concludes the following characters.
$(i)$ The cells are composed of a single layer of tall and slender cells.
$(ii)$ Their nuclei are located at the base.
$(iii)$ Free surface may have microvilli.
$(iv)$ It is found in the lining of stomach and intestine.
$(v)$ They help in secretion and absorption. Based on the above features identify the epithelium.

The germinal layer of keratinized stratified squamous epithelium is:

Epithelial cells that are thin,flat,and look like tiles are found in ..........