The given figures (A - D) show four animals. Select the correct option with respect to a common characteristic of any two of these animals.

A and D respire mainly through body wall.

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B and C show radial symmetry.

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A and B have cnidoblasts for self-defence.

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C and D have a true coelom.

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Solution

The correct option is D C and D have a true coelom.
Figure 'C' is of Octopus (mollusc) and the figure is of a scorpion (arthropod). Both have true coeloms. Figure A is of tapeworm (platyhelminth) and Figure B is of Amelia (cnidarian). Scorpion respires through book lungs. Octopus shows bilateral symmetry. A tapeworm does not have cnidoblasts for self-defense.

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