Main difference between starfishes and brittle stars is in the
number of arms
structure of the ambulacral groove
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Phylum - Echinodermata
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The star fish's pyloric caeca are organs of
The Echinoderms are marine animals with
Which one of the following Echinoder-mate is found in fresh water ?
Which of the following systems is found in Echinoderms ?
In star fish the locomotary organs are
The larva that occurs in the development of Sea urchin is
Class Holothuroidea of phylum Echinodermat a includes
Which is not true of Echinoderms?
The terrestrial species of Echinodermata is *
In star fish which of the following has dual function of locomotion and respiration
Madreporite is associated with
Brittle star belongs to the class
Spines of the body of Sea urchin are
One of these is a stalked echinoderm
In Sea urchin, Aristotle's lantern is a part of
Pentamerous echinoderms with five slender flexible arms sharply marked off from the central disc are
Stone canal in star fish is associated with
The locomotor organs of Echinoderms is called
Sea cucumber belongs to the class
Sea cucumber belongs to class
In which of the Echinoderm, the arms, spines and pedicellaria are absent ?
Which of the following is a living fossil ?
Madriporite or seive plate is found in
The common name of Antedon is
A very well developed brain is present in
The animal that moves with tube feet is
Pedicellariae are modified
The generic name of 'feather star' is
Auricuiaria is the larva of
Aristotle's Lantern is present in
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