name the phylum in which organisms have cell level organisation.

list any two characterstics of chordates.

name the largest phylum which is probably the largest groups of animals

1. Phylum Porifera of animal kingdom has cellular level of organization.
2. Two characteristics of chordates are: presence of notochord and dorsal hollow nerve cord
3. Arthropoda is the largest phylum of animals kingdom.
 

 

 

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1. PORIFERA . 3.ARTHROPODA

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AND THE CHARACTERISTIC OFCHORDATE IS GIVEN IN VERTEBRATA THE POINTS ARE PHARYNGEAL GILL SLITS HAVE A NOTOCHORD

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thse are clear in text books of cbse of class 9 and it is also easy to understand.

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