NEET 2011 Biology question

In which one of the following the genus name, its two characters and its class/phylum are correctly matched? Each option lists: Genus name; Two characters; Class/phylum.

(1)Ascaris; (a) Body segmented, (b) Males and females distinct; Annelida
(2)Salamandra; (a) A tympanum represents ear, (b) Fertilization is external; AmphibiaCorrect
(3)Pteropus; (a) Skin possesses hair, (b) Oviparous; Mammalia
(4)Aurelia; (a) Cnidoblasts, (b) Organ level of organization; Coelenterata

Answer: (2)

Solution

Class Amphibia (NCERT) is characterised by a tympanum that represents the ear and by external fertilisation (in the NCERT account of the class); Salamandra is an amphibian, so genus, both characters and class are matched in option (2). Option (1) is wrong: Ascaris is a nematode (Aschelminthes) with

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Question ID VK-090919