Identify the mismatch among the following pairs:

Identify the location and function of the following structures:
$(i)$ Water vascular system
$(ii)$ Cloaca
$(A)$ $(i)$ Location: Phylum $Echinodermata$; Function: Locomotion, food capture, and respiration. $(ii)$ Location: Posterior body part of amphibians, reptiles, birds, and some fishes; Function: Common chamber for digestive, reproductive, and urinary tracts.
$(B)$ $(i)$ Location: Phylum $Chordata$; Function: Excretion. $(ii)$ Location: Anterior body part; Function: Digestion only.
$(C)$ $(i)$ Location: Phylum $Mollusca$; Function: Respiration. $(ii)$ Location: Dorsal side; Function: Excretion only.
$(D)$ $(i)$ Location: Phylum $Arthropoda$; Function: Circulation. $(ii)$ Location: Ventral side; Function: Reproduction only.

The capacity for regeneration is observed in . . . . . . .

Identify the incorrect pair from the following:

Which of the following is a common trait among fishes,amphibians,and reptiles?

Which one of the following groups of three animals is correctly matched with their one characteristic morphological feature?