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Question

Select the correct match between genus, characters and class among the following.

A
Genus nameTwo charactersClass/PhylumAscaris(i)Segmented bodyAnnelida(ii)Males and females are distinctdistinct
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B
Genus nameTwo charactersClass/PhylumSalamandra(i)A tympanumcoversAmphibiamiddle ear(ii)Fertilisation isinternal
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C
Genus nameTwo charactersClass/PhylumPteropus(i)Skin possesseshairMammalia(ii)Oviparous
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D
Genus nameTwo charactersClass/PhylumAurelia(i)CnidoblastsCoelenterataOrgan level of(ii)organisation
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Solution

The correct option is B Genus nameTwo charactersClass/PhylumSalamandra(i)A tympanumcoversAmphibiamiddle ear(ii)Fertilisation isinternal
Ascaris is a member of Phylum Aschelminthes, which are round worms. They do not have segmented body. In Ascaris, the female ones are longer than male.

Salamandra belongs to the Class Amphibia. As the name indicates (Amphi : dual, bios, life), amphibians can live in aquatic as well as terrestrial habitats. Most of them have two pairs of limbs. Body is divisible into head and trunk with occasional presence of tail in some. The skin is moist (without scales). Eyelids are present. A tympanum represents the ear.

Pteropus is member of Class Mammalia. They are viviparous. A mantle of golden hair covers the head, neck and shoulders.

Aurelia is member of Phylum Coelenterata, which has tissue level of organisation. Its epidermis contain cnidoblasts (stinging cells) for defence purpose.

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