https://www.khanacademy.org/science/hs-bio/x230b3ff252126bb6:from-cells-to-organisms/x230b3ff252126bb6:untitled-26/v/organization-of-multicellular-organisms 2024-05-06T19:22:43.24334365Z Organization of multicellular organisms Multicellular organisms have a hierarchical structural organization: cells make up tissues, tissues make up organs, and organs make up organ systems. Organ systems work together to carry out the many functions of the organism. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/bab7af19-6568-454a-8832-bd8ec95e106c_1280_720_base.png Organization of multicellular organisms Multicellular organisms have a hierarchical structural organization: cells make up tissues, tissues make up organs, and organs make up organ systems. Organ systems work together to carry out the many functions of the organism. https://cdn.kastatic.org/ka-youtube-converted/8pWMifyG5bU.mp4/8pWMifyG5bU.mp4 256 Organization of organisms https://www.khanacademy.org/science/hs-bio/x230b3ff252126bb6:from-cells-to-organisms/x230b3ff252126bb6:untitled-26/a/tissues-organs-and-organ-systems 2026-03-25T13:00:37.369559121Z Tissues, organs, and organ systems Learn about the organization of multicellular organisms and about different types of tissues. article https://www.khanacademy.org/science/ms-biology/x0c5bb03129646fd6:cells-and-organisms/x0c5bb03129646fd6:organization-in-the-human-body/v/ms-organization-in-the-human-body 2024-01-04T21:34:20.525650636Z Organization in the human body In multicellular organisms, the body is a system of multiple interacting subsystems. These subsystems are groups of cells that work together to form tissues, and organs that are specialized for particular body functions. Organs work together in organ systems to carry out specific functions for the organism. Khan Academy video https://cdn.kastatic.org/ka_thumbnails_cache/fb69b19b-ffe7-4fe2-b59b-305c66860185_1280_720_base.png Organization in the human body In multicellular organisms, the body is a system of multiple interacting subsystems. These subsystems are groups of cells that work together to form tissues, and organs that are specialized for particular body functions. Organs work together in organ systems to carry out specific functions for the organism. https://cdn.kastatic.org/ka-youtube-converted/YE2peDF4Zqg.mp4/YE2peDF4Zqg.mp4 254 Organization of organisms https://www.khanacademy.org/science/ms-biology/x0c5bb03129646fd6:cells-and-organisms/x0c5bb03129646fd6:organization-in-the-human-body/a/organization-in-the-human-body 2026-04-15T10:00:48.515869037Z Key points: Organization in the human body Review your understanding of organization in the human body in this free article. article https://www.khanacademy.org/science/biology/principles-of-physiology/body-structure-and-homeostasis/a/tissues-organs-organ-systems 2025-05-28T19:29:35.242191944Z Tissues, organs, & organ systems Learn about the main tissue types and organ systems of the body and how they work together. article https://www.khanacademy.org/science/ms-biology/x0c5bb03129646fd6:cells-and-organisms/x0c5bb03129646fd6:organization-in-the-human-body/e/understand-organization-in-the-human-body 2026-04-15T10:00:48.515869037Z Understand: Organization in the human body Check your understanding of organization in the human body in this set of free practice questions. Khan Academy exercise