What is formed when individual cells join together?

• A. Membranes
• B. Glands
• C. Tissues
• D. Nerves

Answer: (C)

When individual cells join together, they form tissue. This grouping happens because cells of similar structure and function come together to carry out a common job, making a functional unit larger than a single cell. For example, muscle tissue contracts, epithelial tissue lines surfaces, and connective tissue provides support. Tissues are the building blocks that then combine to form organs, which work within organ systems.

Membranes are thin layers that line surfaces and can include cells plus supporting tissues, not the first product of just cells joining. Glands are structures made from cells organized for secretion, which is a more specialized form built from tissues. Nerves are composed of nervous tissue, a specific type of tissue, rather than the general result of individual cells joining.