Sea urchins attach to rocks and use specialized mouth structures to feed.They have an evolutionary advantage over unicellular planktonic protozoa floating by in that they can more effectively _______ on other organisms and resist the forces of waves.

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The Answer of Sea urchins attach to rocks and use specialized mouth structures to feed.They have an evolutionary advantage over unicellular planktonic protozoa floating by in that they can more effectively _______ on other organisms and resist the forces of waves.

Sea Urchins Attach to Rocks and Use Specialized Mouth Structures