| Feature | Protostomes | Deuterostomes | |---------|-------------|----------------| | Blastopore becomes | Mouth | Anus | | Cleavage | Spiral, determinate | Radial, indeterminate | | Coelom formation | Schizocoely | Enterocoely | | Examples | Arthropods, annelids, mollusks | Echinoderms, chordates |
Defining Invertebrates