Select the mismatch w.r.t. the name of the animal, its two characters, and its taxon.

Organism Characters Taxon
$(1)$ Housefly (a) Two pairs of wings
(b) External metamerism
Insecta
$(2)$ Octopus (a) Absence of segmentation
(b) Mouth with radula
Cephalopoda
$(3)$ Nereis (a) Indirect development
(b) Dioecious
Annelida
$(4)$ Asterians (a) Water canal system
(b) Internal fertilisation
Echinodermata

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Solution

The correct option is A $1$
Normally insects have two pairs of wings. The housefly has only one pair of wings. The other pair of wing become reduced and looks like a pair of miniature drumsticks.
Thus, the correct answer is (A).

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Organism	Characters	Taxon
$(1)$ Housefly	(a) Two pairs of wings (b) External metamerism	Insecta
$(2)$ Octopus	(a) Absence of segmentation (b) Mouth with radula	Cephalopoda
$(3)$ Nereis	(a) Indirect development (b) Dioecious	Annelida
$(4)$ Asterians	(a) Water canal system (b) Internal fertilisation	Echinodermata

The correct option is A 1Normally insects have two pairs of wings. The housefly has only one pair of wings. The other pair of wing become reduced and looks like a pair of miniature drumsticks.Thus, the correct answer is (A).

The correct option is A $1$
Normally insects have two pairs of wings. The housefly has only one pair of wings. The other pair of wing become reduced and looks like a pair of miniature drumsticks.
Thus, the correct answer is (A).