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Match the following group of organisms with their respective distinctive characteristics and select the correct option

OrganismsCharacteristics
(a)Platyhelminthes(i)Cylindrical body with no segmentation
(b)Echinoderms(ii)Warm blooded animals with direct development
(c)Hemichordates(iii)Bilateral symmetry with incomplete digestive system
(d)Aves(iv)Radial symmetry with indirect development

(1) (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

(2) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

(3) (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)

(4) (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)

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1 Answer

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Best answer

Answer (2) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

Sol. Option (2) is the correct answer. Birds and mammals are homeotherms (warm blooded). Metameric segmentation is present in annelids, Arthropods and chordates. Adult echinoderms are radially symmetrical but larvae are bilaterally symmetrical. In most of the platyhelminths, single opening of digestive system serves the function of both mouth and anus.

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