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Animal kingdom is classified into different phyla based on ____________

(a) Type of blood they have

(b) The presence or absence of vertebral column.

(c) Place they live

(d) Food they eat on

I have been asked this question by my school principal while I was bunking the class.

Query is from Living World topic in chapter The Living World of Biology – Class 11

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Right answer is (b) The presence or absence of vertebral column.

Best explanation: Animal kingdom is divided into Vertebrata and Non-vertebrata based on the presence or absence of vertebral column. Plants are divided into Cryptogams and Spermatophytes.

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