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Earn 100

The chitinous exoskeleton of arthropods is formed by the polymerization of:

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Important Questions on Animal Kingdom

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Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum
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Which of the following features is not present in the Phylum - Arthropoda?
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Match the column I with column II for housefly classification and select the correct option using the codes given below:

Column I Column II
(A) Family (i) Diptera
(B) Order (ii) Arthropoda
(C) Class (iii) Muscidae
(D) Phylum (iv) Insecta
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In the case of Poriferans, the spongocoel is lined with flagellated cells called
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Which one of the following animals is correctly matched with its one characteristic and the taxon
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Identify the incorrect match from those given below
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Match the larval stages (in column I) with their corresponding animals (in column II) and select the correct option.

Column I Column II
I. Planula i. Holothuria (Sea cucumber)
II. Trocophore ii. Hermit crab
III. Glochidium iii. Obelia 
IV. Glaucothoe iv. Neresis
    v. Unio