Biology, asked by akhilhpr1605, 1 year ago

Write short not on learvel from Echinoderemata

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Answered by Satyamstylo001
0
In echinoderms eggs and sperms are released in water and fertilization takes place in water forming zygote. Echinoderms are deuterostomes and hence cleavage is radial, holoblastic and indeterminate. The larvae hatch in water and feed and grow through successive larval stages to become adults. The larvae of echinoderms are bilaterally symmetrical but lose symmetry during metamorphosis. Different classes of echinoderms show structurally different larval stages and their comparisons can reveal their evolutionary ancestry.
Answered by smiley2609
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Echinoderm is the common name given to any member of the phylum Echinodermata of marine .The larvae of echinoderms have bilateral symmetry but this is lost during . Boluses of mucus-trapped food are passed to the mouth which is linked to the anus by a loop consisting of a short oesophagus and longer intestine.



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