In which one of the following preparations are you likely to come across cell junctions most frequently?

What is the basement membrane composed of?

Where is non-keratinized stratified squamous epithelium found?

$A$ 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.

$A$: The inner lining of trachea,bronchi,and fallopian tubes has simple epithelium with non-motile cilia.
$R$: Cilia form the brush-border.

Reproductive cells $(germinal\ \text{epithelium})$ are made up of which of the following epithelial tissue?