Unique features of vertebrates include the presence of a(n) ______.Group of answer choicesendoskeletonnotochordtrue coelomskull and backbonepharyngeal slit
Question
Unique features of vertebrates include the presence of a(n) ______.
Group of answer choices:
- endoskeleton
- notochord
- true coeloms
- skull and backbone
- pharyngeal slit
Solution
The unique features of vertebrates primarily include the presence of a skull and a backbone.
- Skull: Vertebrates possess a hard bony or cartilaginous structure that encases and protects the brain.
- Backbone: Also known as the vertebral column, it is made of vertebrae that protect the spinal cord and provide structural support.
Other features listed, such as endoskeletons, notochords, true coeloms, and pharyngeal slits, have relevance in different contexts, but the defining characteristics of vertebrates are specifically the skull and backbone, making them distinct from invertebrate animals.
Final Answer
The presence of a skull and backbone is unique to vertebrates.
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