Question

4 difference between chordates and non-chordates

Answer 1

Chordata

1. Notochord is present in embriyo.

2. Central dorsal, hollow nerve is present.

3. Phayregial gill slits present.

4. Heart non vertebral.

5. Hepatic portal system present.

6. RBC posses hemoglobin.

7. Blood flows in dorsal vessel from before backwards.

Non-Chordta

1. Notochord is absent

2. Central nervous system

3. Pharyngeal gill slit is absent.

4. Heart dorsal.

5. Hepatic portal system absent.

6. If present dissolve in plasma.

7. Blood flows in dorsal vessel from behind forward.

Answer 2

Answer:

chordates

1.chordates have notochord

2.in chordates tail is absent

3.central nervous system is hollow and dorsal

4.vertibral column is present

non chordates

1.

Explanation:

1.non chordates do not have notochord

2.tail is present

3.central nervous system is solid and ventral

4.vertibral column is absent