Final answer:
The correct order of increasing protectiveness in types of epithelia is simple squamous, simple cuboidal, simple columnar, pseudostratified, stratified squamous.
Step-by-step explanation:
The correct order of increasing protectiveness (least to greatest) in types of epithelia is option B: simple squamous, simple cuboidal, simple columnar, pseudostratified, stratified squamous.
Epithelial tissues are classified based on the number of cell layers present and the shape of the cells. In general, the more layers of cells, the greater the protectiveness.
Simple squamous epithelium is the least protective as it consists of a single layer of flat cells, while stratified squamous epithelium is the most protective with multiple layers of cells.
Learn more about Types of epithelia