Sand Dollar
The sand dollar is simply described as a flattened sea urchin, with shorter and less painful spines on the body. The mouth of the organism is located on the bottom of the animal where nutrients are taken in.They have a rigid outer shell known as a test and a simply nervous system. The nervous system contains a ring around the mouth of the organism and long veins that stretch trough out its body.
The sand dollar is simply described as a flattened sea urchin, with shorter and less painful spines on the body. The mouth of the organism is located on the bottom of the animal where nutrients are taken in.They have a rigid outer shell known as a test and a simply nervous system. The nervous system contains a ring around the mouth of the organism and long veins that stretch trough out its body.