Why bone is described as a tissue in fish?

Bone is described as a tissue in fish because it is a specialized connective tissue that provides structural support, protection, and facilitates movement. Composed of cells, fibers, and an extracellular matrix, bone in fish also plays a crucial role in mineral storage and maintaining the body's overall homeostasis. Additionally, the composition and structure of bone can vary among different fish species, adapting to their specific ecological niches and lifestyles.