Differentiate between Non-Chordata and Chordata.
(N/A)
| Non-Chordata | Chordata |
|---|---|
| $(1)$ Notochord is absent. | $(1)$ Notochord is present. |
| $(2)$ Digestive tract is dorsal to the nerve cord. | $(2)$ Digestive tract is ventral to the nerve cord. |
| $(3)$ Pharyngeal gill slits are absent. | $(3)$ Pharyngeal gill slits are present. |
| $(4)$ Blood circulatory system is open,closed,or absent. | $(4)$ Blood circulatory system is always closed. |
| $(5)$ Nervous system is solid,nerve cord is double,ventral,and ganglionated. | $(5)$ Nervous system is hollow,nerve cord is single,dorsal,and without ganglia. |
| $(6)$ Animals are cold-blooded (poikilothermic). | $(6)$ Animals can be cold-blooded or warm-blooded (homeothermic). |
| $(7)$ Post-anal tail is absent. | $(7)$ Post-anal tail is present. |
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