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echinoderms (clasification (crinoidea, asteroidea, echinoidea, ophiuroidea…
echinoderms
clasification
crinoidea
asteroidea
echinoidea
ophiuroidea
holothuridea
reproduction
sexual reproduction
regeneration
oviparous
methamorphosis
acuatic and marines
radial symmetry
five equal sections
derman eskeleton
vital functions
digestive system
amburacral appparatus
amburacral feet