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2015-03-26T14:57:23+05:30

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a ) Ascaris , Enterobius , are some animals with false coelom and jelly fish , sycon , fungia , planaria , etc. are some acoelomate animals 

b ) notochord are the place for muscles to  attach for easy movement and locomotion .

c ) chordates are triploblastic , coelomate , dorsal ( stomach side ) and they have also notochord. kidney like organs are present .
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2015-03-26T16:15:57+05:30

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The animals without coelom are called acoelomate.
eg: chinese liver fluke,brown planerian and animals under phyla platyhelminthes
                                                                                                                                   
notochord is the rod like structure passing through the back of the body that separates nervous system from the guts.I t serves as a source of midline signals and has an essential role in vertebrate development
                                                                                                                                     
the chordates posses the following features:
notochord
dorsal nerve chord
have paired gill pouches
triploblastic
are coelomate

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can u plz ans my question it is next to this one