What are Sand Dollars?

Q: What are Sand Dollars?


A: Sand Dollars are species of flattened and burrowing sea urchins belonging to the order Clypeasteroida.

Q: What is the scientific name of the Common Sand Dollar?


A: The scientific name of the Common Sand Dollar is Echinarachnius parma.

Q: Where can Sand Dollars be found?


A: Sand dollars can be found in temperate and tropical zones, but not in Great Britain.

Q: What is a test in Sand Dollars?


A: A test in Sand Dollars is a rigid skeleton known as a white disk found washed up on beaches.

Q: What is the skin of Sand Dollars?


A: The skin of Sand Dollars is composed of movable spines on the test through which movement is done by their action.

Q: How many paired rows of pores do Sand Dollars have?


A: Sand Dollars have five paired rows of pores arranged in a petal-like pattern.

Q: What is the function of the pores in Sand Dollars?


A: The pores in Sand Dollars are perforations in the endoskeleton through which the tube feet, used in gas exchange, project from the body.

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