What is the main function of epithelial tissue in animals?
It covers and protects organs and cavities of the body.
Epithelial tissue forms continuous sheets that cover external body surfaces (skin), line internal organs and cavities (intestine, lungs, blood vessels), and form glands. Its primary role is to act as a protective barrier — preventing entry of pathogens, controlling what enters and leaves the body, and shielding underlying tissues from mechanical damage.
Connective tissue provides structural support and connects organs. Muscular tissue enables movement. Blood (a connective tissue) transports gases and hormones. These are distinct tissue types with different functions.
The correct answer is : It covers and protects organs and cavities of the body.
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