Sea Urchin

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Vascular: relating to the tissues of the body that move blood or nutrient-rich fluids.

How Sea Urchins Move

This purple urchin moves along the bottom of the aquarium in much the same way it would in the ocean. You can see some of the tube feet attached to the rocks as it pulls itself along. The tube feet are part of the urchin's water vascular system. Urchins can also move using their spines, which are controlled by strong muscles.

urchin underwater


 

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Bibliographic details:

  • Article: Movement
  • Author(s): Dr. Biology
  • Publisher: Arizona State University School of Life Sciences Ask A Biologist
  • Site name: ASU - Ask A Biologist
  • Date published: December 23, 2009
  • Date accessed: July 20, 2018
  • Link: https://askabiologist.asu.edu/movement

APA Style

Dr. Biology. (2009, December 23). Movement. ASU - Ask A Biologist. Retrieved July 20, 2018 from https://askabiologist.asu.edu/movement

American Psychological Association. For more info, see http://owl.english.purdue.edu/owl/resource/560/10/

Chicago Manual of Style

Dr. Biology. "Movement". ASU - Ask A Biologist. 23 December, 2009. https://askabiologist.asu.edu/movement

MLA 2017 Style

Dr. Biology. "Movement". ASU - Ask A Biologist. 23 Dec 2009. ASU - Ask A Biologist, Web. 20 Jul 2018. https://askabiologist.asu.edu/movement

Modern Language Association, 7th Ed. For more info, see http://owl.english.purdue.edu/owl/resource/747/08/

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