Question

state any five differences between scoliodon dog fish and astrias star fish

Answer 1

The differences between scoliodon dogfish and asterias star fish are as follows:

Scoliodion dogfish -
1.Its in phylum pisces.
2. Has scales on its body.
3. No calcium carbonate rigid skeleton.
4. They have notochord present.
5. Dorsal nerve chord is present.

Asterias Goldfish -
1. Its in phylum echinodermata.
2. Has a spinny skin.
3. Has calcium carbonate rigid skeleton.
4. Notochord is absent.
5. Dorsal nerve chord is absent.

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Answer 2

Dog fish
*is in the phylum pices.
*scales
*does not carbonate have hard calcium carbonate structure that use for skeleton 
*They have notochord 
* have dorsel nerve chord.

Star Fish
*Is in the phylum echinodermata
*has spiny skinned.
*have hard calcium carbonate structure that use as skeleton.
*Does not have notochord.
*Does not have dorsel nerve chord.