What are the common features of the chordate type?
| August 21, 2021 | education
The main properties of chordates are:
1) internal skeleton – notochord;
2) tubular nervous system;
3) the main parts of the circulatory system are located in the abdominal part of the body, the central nervous system – in the dorsal part of the body.
A numerous subclass of chordates, vertebrates, have the following main features:
1) the chord is replaced by the spine;
2) a closed circulatory system;
3) the brain is developed and protected by the skull;
4) respiratory organs: gills or lungs.
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