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Biology
Echinodermata
The madreporite of a starfish would be located on what surface?
Biology
Echinodermata
Give the special feature of phylum Echinodermata. What are the similarities between phylum Echinodermata and phylum Chordata?
Biology
Echinodermata
What type of asexual reproduction does a starfish show?
Biology
Echinodermata
Which of the following echinoderm animals belongs to class Crinoidea?
A. Sea urchin
B. Sea cucumber
C. Sea star
D. Sea lily
Biology
Echinodermata
Which of the following classes is characterized by the star-like body with arms sharply marked off from the central disc?
A. Ophiuroidea
B. Echinoidea
C. Holothuroidea
D. None of the above
Biology
Echinodermata
Star fish is a marine echinoderm. What is the symmetry seen in the larva and adult stages?
A. Pentameric radial symmetry is seen in larva and bilateral symmetry in adults.
B. Bilateral symmetry is seen in larva and pentameric radial symmetry in adults.
C. Pentameric radial symmetry is seen in both larva and adult stages.
D. Bilateral symmetry is seen in both larva and adult stages.
Biology
Echinodermata
Which of the following are exclusively marine animals?
A) Cnidarians
B) Echinoderms
C) Molluscs
D) Arthropods
Biology
Echinodermata
True enterocoelic coelom appeared first in the course of evolution?
Biology
Echinodermata
Which of the following animals does not belong to phylum Echinodermata?
i. Starfish
ii. Eocrinoidea
iii. Sea cucumber
iv. Chiton
Biology
Echinodermata
Assertion: The Ambulacral system plays a major role in locomotion of echinoderms.
Reason: Hydraulic pressure of fluid and contraction of muscle of tube feet make possible movement of echinoderm.
a) Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
b) Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
c) Assertion is correct but Reason is incorrect.
d) Both Assertion and Reason are incorrect.
Biology
Echinodermata
Main function of pedicellariae in Asterias is ?
A) Digestion
B) Excretion
C) Respiration
D) Capture of prey and removal of debris
Biology
Echinodermata
How might I identify an echinoderm?
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