Divide all the phylums of animal kingdom on the basis of their ploidy level. Explain how to identify their ploidy level too

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Please find below the solution to the asked query        

Ploidy refers to the numbers of sets of chromosomes in an organism. IAn organism could be haploid (having one set of chromosome), diploid (having 2 sets of chromosome ), triploid (having 3 sets of chromosome) and so on. Ploidy level of different animal phylums is as follows:
Porifera: Diploid
Cnidaria: Diploid
​Platyhelminthes: Diploid or triploid
​Rotifera: Diploid
Nematoda: Diploid
​Annelida: Diploid
​Arthropoda: Diploid
Mollusca: Diploid
​Echinodermata: Diploid
​Chordata: Diploid

The gametes produced by all diploid organisms are haploid in nature.

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