First slide

Classification of Animals

Question

Which of the following are similar in their basic function?

Easy

A

Nephridia and parapodia – Excretion
B

Air bladder and urinary bladder – Excretion
C

Parapodia and comb plates – Locomotion
D

Tympanum and operculum – Hearing

Solution

Parapodia and comb plates are the locomotory structures in annelids and ctenophores respectively.
Tympanum helps in hearing while operculum is a lid that covers gills in bony fishes.
Air bladder helps in buoyancy while urinary bladder stores urine.
Nephridia help in excretion.

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