In these, early cleavage occurs radially, and individual cells can still develop into complete organisms after several cleavages.
In these, early cleavage occurs radially, and individual cells can still develop into complete organisms after several cleavages. Because they fit into this category, phoronids, lophophores, and starfish are considered more closely related to vertebrates than the seemingly more complicated insects and crustaceans. FTP, name this classification of animals whose blastopore develops into the anus, the opposite of protostomes.
In these, early cleavage occurs radially, and individual cells can still develop into complete organisms after several cleavages.
Deuterostomes (Deuterostomata)