A) Typhlosole in earthworm, intestinal villi in rat and contractile vacuole in Ameoba.
B) Nephridia in earthworm, Malpighi an tubules in cockroach and urinary tubules in rat.
C) Antennae of cockroach, tympanum of frog and clitellum of earthworm.
D) Incisors of rat, gizzard (proventriculus) of cockroach and tube feet of starfish.
Correct Answer: B
Solution :
In option [b], the given structures represent excretory organs. All these three organs such as Nephridia, Malpighian tubules and urinary tubules are helpful in excretion.
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