What benefits do plants and animals (and fungi) have in developing the organ system? Why?

Explanation:

"Animals, plants, and fungi often have many different organs whose different functions are integrated, enabling multicellular organisms to maintain themselves, grow, and reproduce. Two or more tissues that work together to get a job done form an organ. A group of organs that works together to perform a certain job is an organ system. Organ systems found in plants, animals, and other multicellular organisms allow these organisms to function more efficiently."