Question

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Q . Compare between CHORDATES and NON-CHORDATES.
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Answer 1

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CHORDATES :-

1) Notochord is present at some stage of life.

2) Central nervous system is dorsal and hollow.

3) Heart is ventral.

NON CHORDATES:-

1) Notochord is not present at any stage in the life of a non-chordate.

2) Central nervous system is ventral and solid.

3) Heart is Dorsal.

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Answer 2

★ HERE IS YOUR ANSWER ★

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DIFFERENCE BETWEEN CHORDATES AND NON-CHORDATES :-


CHORDATES :

• Notochord is present in them at some of their developmental stage.

• Their central nervous system is hollow and dorsal.

• Their circulatory system us of hollow type.

• Haemoglobin is present in their red blood cells or corpuscles.

• Heart is always present and it is in ventral position.

• Pharyngeal gill - slits are present in them.


NON - CHORDATES :

• Notochord is absent in them.

• Their central nervous system is solid and ventral.

• Their circulatory system is of open or closed type.

• Respiratory pigment, the haemoglobin
, if present, is dissolved in plasma of blood.

• Heart, if present in them, is dorsal in position.

• Pharyngeal gill slits are absent in them.

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