Write about phylum with its features . minimum 4 .

1.	Write about phylum with its features . minimum 4 .
Answer» *porifera :-* *- sedentary* *- sessile* *- appendages are absent* *- CELLULAR level of organisation* *- exo- skeleton* *- radial symmetry* *- non-motile* *- reproduction is ASEXUAL by budding .* *e.g.sycon , eupletilia* *platyhelminthe :-* *- 'platy' means flat and 'minthes' worm* *- organisms of this phylum are dorsiventral* *- parasitic* *- bilateral symmetry* *- triploblastic* *- reproduction sexual and also asexual* *- organ level of organisation .* *- skeleton is absent* *e.g.planaria , tapeworm , etc.* *nematoda :-* *- bilateral symmetry* *- false COELOM* *- triploblastic* *- nervous system well developed* *- reproduction is sexual* *- they are free living means they are live in water as well as moist soil* *annelida :-* *- bilateral symmetry* *- triploblastic* *- reproduction is sexual* *- organ level of organisation* *- segments are visible .* *- they are free living* *- they attached themselves to the body of animals and food by sucking* *e.g.leech ,nereis ,etc.* *echinodermata :-* *- found in BOTTOM of the sea* *- triploblastic* *- coelomic CAVITY* *- reproduction is sexual* *- radial symmetry* *e.g.starfish , feather fish , etc.*

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Write about phylum with its features . minimum 4 .

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