Briefly explain how radial symmetry and the lack of cephalization usually associated with it can have adaptive value for sessile animals and be favored by natural selection.

the right side of the picture going down is:

polymerase

protein

transport vesicle

modified protein

the left side of the picture going down is:

dna helix

single-stranded rna

endoplasmic reticulum

ribosome

golgi apparatus

protein released from vesicle

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1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

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