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X is an Echinoderm showing radial symmet...

X is an Echinoderm showing radial symmetry with water vascular system and tube feet. (a) An arm of X is damaged in an accident and later it was grown and regained its original form
(a) Name the Echinoderm - X.
(b) What is the biological phenomenon that led to the regain of lost arm?

Text Solution

Verified by Experts

(a) Star fish
(b) Restorative regeneration,
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