1. Tardigrade
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  3. Biology
  4. Noh-chordates have :

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Q. Noh-chordates have :

Bihar CECEBihar CECE 2005

Solution:

Presence of hepatic portal system is a character of chordates:
S. No.
Chordata
Non -chordata
1.
Post anal tail is usually present.
Usually absent.
2.
Notochord present at some stage or replaced by a back bone.
Notochord or back bone absent
3.
Pharyngeal gill slits present at some stage of life
These are usually absent
4.
Heart ventrally placed
Dorsal, lateral, or absent
5.
Closed blood vascular system
Open, closed or absent
6.
Hepatic portal system present
Absent
7.
Hemoglobin in RBCs
Hemoglobin in plasma or absent
8.
Hollow nervous system
Solid nervous system
9.
Single, dorsal nerve cord without ganglia
Double, ventral nerve cord bearing ganglia.