A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. ... Animal cells simply have a cell membrane, but no cell wall.
Demeter International is the primary certification agency for farms and gardens using the methods. In the United States, bio-dynamic farming dates from 1926.-
