The muscular system of a sea urchin
What are sea urchins?
Sea Urchins are small, spiky, spherical sea creatures. Sea Urchins come in very dull, varied shades of colors. They commonly feed on algae and move very slowly. This lack of speed makes them easy prey for other animals, such as sea otters, wolf eels, and triggerfish. Like starfish, sea urchins also move with small tube feet. They are also five-fold symmetry like many other echinoderms. They are found along the ocean floors worldwide.
what are their muscular systems like?
The muscular system of a sea urchin is spread throughout the body. Like starfish, it uses it muscles to move its tube feet and navigate the underwater environment. They also have muscles and plates around their mouth and anus to eat and excrete food materials such as algae. With the use of these muscles and plates, sea urchins can fulfill its basic needs for survival in the expansive ocean.