What organisms have stem cells?

Stem cells are present in a variety of organisms, including humans and other animals, as well as plants. In animals, stem cells are found in tissues such as bone marrow, skin, and the lining of the gut, where they contribute to growth, repair, and regeneration. In plants, stem cells are located in meristems, which allow for continuous growth and the formation of new organs like leaves and flowers. Overall, stem cells play a crucial role in development and regeneration across many life forms.