Final answer:
Epithelial tissue is designed to separate fluids in the body and forms barriers on surfaces and cavities. It is essential for protection, secretion, and absorption.
Step-by-step explanation:
The tissue specialized for separating fluids is epithelial tissue. This type of tissue forms sheets of cells that cover the body's exterior surfaces, line internal cavities, and passageways, and are also essential components of glandular structures. Epithelial cells are tightly packed with minimal extracellular matrix, and they can form impermeable barriers due to tight junctions among them. The primary function of epithelial tissue includes protection, absorption, filtration, excretion, and secretion.
Connective tissue, on the other hand, supports and protects organs, binds organs together, and includes various types such as bone, blood, and tendons. Muscle tissue allows for movement, and nervous tissue is responsible for transmitting signals and processing information.
Therefore, when it comes to separating fluids and forming barriers in the body, the epithelial tissue takes on this crucial role.