cells of the inner cell mass of the blastula in animals and parenchyma cells of the ground tissue of plants have something in common which is the ability the have to differentiate into number of cells making them PLURIPOTENT.
Generally, pluripotent cells are those that have the ability to self-renew themselves, and this they do by dividing.
In pluripotent stem cells,when the cells divide,they develop into the three primary germ cell layers which is of the early embryo and further into all the cells of the adult body.
This does include an extra embryonic tissues example; the placenta.
Similar to the pluripotent cells,the inner cell mass of the blastula in animals and parenchymal cells of the ground tissue of plants all undergo rapid cell division, differentiation in to number and this brings about growth and they do so that is self renew on their own without aid.