Answer:
The major
differences between Chordates and Non-chordates are as follows
Schematic sketch
illustrating important characters of chordates is shown below
Chordates
Non-Chordates
1. A notochord is present at
some stage in the life cycle of a chordate.
Notochord is not present at
any stage in the
Life cycle of a non-chordate.
2. Gill-slits are present in
the pharynx either in embryo or in adult organism.
Pharyngeal gill slits are
absent.
3. Tail is present at some
stage in the life of the chordate.
Tail is absent in
non-chordates.
4. Heart is ventrally
located.
Heart (if present) is
dorsally located,
5. Central nervous system is
dorsal and hollow in chordates.
Central nervous system in
non-chordates is solid and ventrally located.
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