Question

10.phylem-chordata(vertebrata)

Explain Meaning

Answer 1

tHey have backbone. At larval stage they have notochord. tHe function of backbone is to maintain balance ,inside framework and keeping the body stable. thEy are divided intn five classes-fishes,frogs,lizards,birds and hairy,quadrupeds.

Answer 2

ANSWER


CHORDATA


MEANS A ANIMAL WHICH HAVE A NOTOCHORD


CHARACTERISTICS ARE

PRESENCE OF NERVE CHORD AND PHARYNGEAL GILLS

BILATERALLY SYMMETRY

ORGAN SYSTEMS LEVEL OF ORGANISATION


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