Stem cells<span> are a class of undifferentiated </span>cells<span> that are able to differentiate into specialized </span>cell<span> types. Commonly, </span>stem cells<span> come from two main sources: Embryos formed during the blastocyst phase of embryological development (embryonic </span>stem cells<span>) and. Adult tissue (adult </span>stem cells<span>).
Absorption is when the root absorbs water from the soil and transfers it through the xylem. Transpiration is when the water leaves the leaf surface. The water reaches the leaves through xylem
