Why do multicellular organisms need levels of organization?

Multicellular organisms need levels of organisation because they have the cells that are divided into groups which perform certain functions like digestion, respiration, reproduction, and other metabolism for growth. Hence, they need levels of organisation.

Plant cells are eukaryotic cells that have a definite nucleus with specialized structures known as organelles that perform different functions within the cell. Some organelles of the plant cells with their function include; nucleus (controls the cells activities and contains genetic materials), cell wall (support the cell and also maintains high turgidity), ribosomes (synthesizes protein), mitochondria (produces ATP (energy) out of food), Golgi Apparatus (process and package proteins), chloroplasts (produces food by photosynthesis using sunlight), vacuole (stores water or food molecules) and lysosome (contains digestive enzymes that break down food).