This category contains all invertebrates, meaning all characters who lack a spine.
Invertebrates are animals that neither possess nor develop a vertebral column (commonly known as a backbone or spine). This is the only real trait that links all invertebrates together, as invertebrates have the most varied forms of any group of animals. Invertebrates are classified as such:
- Kingdom: Animalia
- Superphylum: Deuterostomia
There is no phylum "Invertebrata". Phylum for invertebrates is determined by what specifically they are, like Arthropoda, Cnidaria, or Mollusca.
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