Final answer:
A cell may become specialized and join with others to form tissues, organs, and organ systems, contributing to the complex organization of multicellular organisms. These specialization processes enable multicellular organisms to perform functions more efficiently than single-celled organisms.
Step-by-step explanation:
A cell may become specialized and may aggregate with others of its kind to form greater levels of organization. In biology, the progression from a single cell to a complex multicellular organism involves this specialization of cells. As cells become more specialized, they perform specific functions more efficiently. For example, circulatory systems are responsible for transporting nutrients and removing waste, while respiratory systems are vital in providing oxygen to cells and eliminating carbon dioxide.
In multicellular organisms, cells form tissues, and similar tissues group together to form organs. These organs then work cooperatively within organ systems to manage and regulate body functions. The surface area-to-volume ratio is also significant as it affects numerous aspects of animal development, such as the relationship between muscle mass and the strength of skeletons, as well as heat generation and dissipation.
By understanding the levels of biological organization, we appreciate how multicellularity allows for an enhanced physiological capability which single-celled organisms cannot achieve. Multicellular organisms can have cells that are capable of being sacrificed for the greater good of the whole organism, illustrating a higher degree of complexity and adaptation.