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Radial symmetry is usually associated with
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- aquatic mode of life
- lower grade of organisation
- creeping mode of locomotion
- sedentary mode of life
Correct Option: B
Coelom or body cavity, when derived from blastocoel is pseudocoelom as in nematodes, rotifers. In this type of cavity, mesoderm is lined by only one side i.e., towards the body wall. Schizocoel is true coelom derived from mesodermal segments.
