Answer:
The sessile and free-floating species like sea anemones and jellyfish exhibits a selective advantage due to the existence of the features like radial symmetry and a diffuse nerve net as it helps in the greater dissemination of sensory compositions on the entire body and also homogenously exposes the organism to the environment present around it for enhanced sensory discernment. It helps the organism in approaching their environment equivalently from all the sides.
You have to employ deductive reasoning to answer this question.
Do sea walls protect land from erosion?
Do limits on clear cutting protect land from erosion?
Do cut and burn methods conserve land by enriching the soil?
How would rain water harvesting contribute to the conservation of land?
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