In Sea urchin, Aristotle's lantern is a part of
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Phylum - Echinodermata
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Water vascular system helps in
Stone canal in star fish is associated with
The star fish's pyloric caeca are organs of
Which of the following is a living fossil ?
The animal that moves with tube feet is
Which is not true of Echinoderms?
Pedicellariae are modified
In which of the Echinoderm, the arms, spines and pedicellaria are absent ?
Bipinnaria larva is found in the development of a
The larvae of sea stars are
Aristotle's lantern is
The star fish zygote develops into a
Animals with radial symmetry in adults and bilateral symmetry in larvae are
Class Holothuroidea of phylum Echinodermat a includes
Sea cucumber belongs to the class
The respiratory organs in a sea star are
Pentamerous echinoderms with five slender flexible arms sharply marked off from the central disc are
Which one of these is an Echinoderm ?
Madreporite is associated with
The terrestrial species of Echinodermata is *
Water vascular system is found in
Ambulacral system or water vascular system is typically found in
One of these is a stalked echinoderm
The larva that occurs in the development of Sea urchin is
A calcareous box like test is found in
Star fishes are
Which one of the following Echinoder-mate is found in fresh water ?
A very well developed brain is present in
Brittle star belongs to the class
Sea cucumber belongs to class
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