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Question
The adult echinoderms are ________ and the larvae are _________.
The adult echinoderms are ________ and the larvae are _________.
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Solution
The correct option is B radially symmetrical, bilaterally symmetrical
The adult echinoderms are radially symmetrical and larvae are bilaterally symmetrical.
Organisms exhibiting bilateral symmetry can be cut into two identical halves in only one plane, the median sagittal plane.
Organisms exhibiting radial symmetry can be cut into two identical halves in any plane passing through the centre.
Asymmetrical organisms cannot be cut into identical halves in any plane.
The adult echinoderms are radially symmetrical and larvae are bilaterally symmetrical.
Organisms exhibiting bilateral symmetry can be cut into two identical halves in only one plane, the median sagittal plane.
Organisms exhibiting radial symmetry can be cut into two identical halves in any plane passing through the centre.
Asymmetrical organisms cannot be cut into identical halves in any plane.
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