What are tissues made up of?

Tissues are composed of groups of similar cells that work together to perform a specific function. This organization allows for greater efficiency and specialization in carrying out particular tasks within an organism. For instance, muscle tissue is made up of muscle cells that can contract, facilitating movement. Similarly, connective tissue consists of cells that help hold structures together and provide support.

This definition highlights the importance of cell similarity within a tissue, as it enables the cells to coordinate their functions effectively. In biology, this level of organization is crucial for the overall functioning of organs and systems within living organisms, making the understanding of tissues foundational for further study in anatomy and physiology.