Simplify the following text for a Grade 10 native English-speaking person.
Original: Meristematic cells are analogous in function to stem cells in animals , are incompletely or not at all differentiated , and are capable of continued cellular division ( youthful ) .
Simplified: Meristematic cells have the same function for plants as stem cells have for animals . They are incompletely or not at all differentiated , and are capable of continued cellular division ( youthful ) .