https://www.khanacademy.org/science/hs-bio/x230b3ff252126bb6:from-cells-to-organisms/x230b3ff252126bb6:untitled-26/v/stem-cells-and-differentiation 2024-05-09T17:42:08.599818576Z Stem cells and differentiation Stem cells are unspecialized cells that undergo differentiation to form specialized cells. Potency describes the ability of stem cells to differentiate into specialized cells. Self-renewal describes the fact that stem cells can divide many times while remaining unspecialized. Stem cells can be categorized as totipotent, pluripotent, or multipotent based on how many different cell types they can give rise to. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/4e2a0fa2-adc0-4bf6-93dd-627e58d6d353_1280_720_base.png Stem cells and differentiation Stem cells are unspecialized cells that undergo differentiation to form specialized cells. Potency describes the ability of stem cells to differentiate into specialized cells. Self-renewal describes the fact that stem cells can divide many times while remaining unspecialized. Stem cells can be categorized as totipotent, pluripotent, or multipotent based on how many different cell types they can give rise to. https://cdn.kastatic.org/ka-youtube-converted/jOBRupYkyaw.mp4/jOBRupYkyaw.mp4 404 Specialised cells, tissues and organs 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 Specialised cells, tissues and organs https://www.khanacademy.org/science/hs-bio/x230b3ff252126bb6:from-cells-to-organisms/x230b3ff252126bb6:untitled-26/a/stem-cells-and-differentiation 2024-05-09T17:42:08.599818576Z Stem cells and differentiation Learn about how stem cells give rise to the specialized cells of multicellular organisms. 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/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/hs-bio/x230b3ff252126bb6:from-cells-to-organisms/x230b3ff252126bb6:untitled-26/e/understand-from-cells-to-organisms 2026-04-07T23:36:17.218592739Z Understand: from cells to organisms Check your understanding of stem cells and the organization of multicellular organisms in this set of free, standards-aligned practice questions. Megan Cohn exercise https://www.khanacademy.org/science/hs-bio/x230b3ff252126bb6:from-cells-to-organisms/x230b3ff252126bb6:untitled-26/e/apply-from-cells-to-organisms 2026-04-07T23:17:37.123726494Z Apply: from cells to organisms Apply your understanding of stem cells and the organization of multicellular organisms in this set of free, standards-aligned practice questions. Megan Cohn exercise