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Earn 100

Starfish is
(a)Symmetrical
(b)Radially symmetrical
(c)Bilaterally symmetrical
(d)Asymmetrical

72.12% studentsanswered this correctly
Important Questions on Classification
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Column – I | Column – II | ||
---|---|---|---|
Pila | Flame cells | ||
Bombyx | Comb plates | ||
Pleurobrachia | Radula | ||
Taenia | Malpighian tubules |
Select the correct option from the following:

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Column-I | Column-II |
Flame cells | Sponges |
Collar cells | Hydra |
Stinging cells | Planaria |

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Study the following table and pick up the correct combinations.
S.No | Class | Common name of animals | Special feature |
I) | Echinoidea | Sea urchins | Aristotle's lantern |
II) | Cephalopoda | Clams | Crystalline style |
III) | Holothuroidea | Sea cucumbers | Respiratory trees |
IV) | Gastropoda | Squids | Torsion |

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(a) Metagenesis is observed in Helminths.
(b) Echinoderms are triploblastic and coelomate animals.
(c) Round worms have organ-system level of body organization.
(d) Comb plates present in ctenophores help in digestion.
(e) Water vascular system is characteristic of Echinoderms.


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Match the following columns and select the correct option.
Column-I | Column-II | ||
(a) | Gregarious, polyphagous pest | (i) | Asterias |
(b) | Adult with radial symmetry and larva with bilateral symmetry | (ii) | Scorpion |
(c) | Book lungs | (iii) | Ctenoplana |
(d) | Bioluminescence | (iv) | Locusta |

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Larva | Animals | ||
A | Bipinnaria | I | Sea urchins |
B | Auricularia | II | Brittle stars |
C | Ophiopluteus | III | Starfishes |
D | Doliolaria | IV | Sea lilies |
E | Echinopluteus | V | Sea cucumbers |
The correct match is

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Aristotle's lantern is found in echinoids
Glochidium is the larva of cephalopods
Scorpions respire with book lungs.
Parapodia are found in oligochaetes

