The embryo with 8 to 16 blastomeres is called ________.

Morula is an early stage embryo consisting of cells (called blastomeres) in a solid ball contained within the zona pellucida. The morula is produced by a series of cleavage (mitotic) divisions of the early embryo, starting with the single-celled zygote. Once the embryo has divided into 16 cells, it begins to resemble a mulberry, hence the name.