EASY
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Molluscs have a closed circulatory system.

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Important Questions on Diversity in Living Organisms

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Among the following, identify the wrong statements with respect to a whale and write them correctly.
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One of the following is not an Annelid:
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Identify a member of Porifera from the following.
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Hard calcium carbonate structures are used as a skeleton by
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Which among the following have open circulatory system?

(i) Annelida    

(ii) Coelenterata

(iii) Mollusca    

(iv) Arthropoda

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Nephridia are the excretory organs of:
 
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Two chambered heart is found in members of class:
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The most striking feature of vertebrates is the presence of:
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In which group of animals, the coelom is filled with blood?
 
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Excretion in flatworms occurs by:
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Which among the following have scales?

(i) Pisces

(ii) Amphibians

(iii) Mammals

(iv) Reptiles

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The locomotory organs of Echinodermata are:
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Differentiation in segmental fashion occurs in:
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Four chambered heart is found in members of class :
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Which among the following have an open circulatory system?
(i) Arthropoda     

(ii)Mollusca     

(iii) Annelida     

(iv) Coelenterata