Answer:
Epithelial Tissues
Explanation:
Epithelial tissues are one of the four major types of tissue in the body, and it can be found throughout many parts of the body. It lines many of structures of the respiratory tract, such as the trachea, bronchi, bronchioles, and alveoli, which are the tiny air sacs in the lungs.
The four major types of tissues are:
- Epithelial tissue
- Connective tissue
- Muscle tissue
- Nervous tissue
It protects the cells found beneath the epithelial layer from things like toxins and acidity. The picture shows you many skin cells working together to form "epithelial tissues".
Therefore, the correct answer is epithelial tissues.
