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Sea urchin, spherical-shaped echinoderm with movable spines covering the body. The body wall is a firm, globose shell, or test, made of fused skeletal plates and marked by regularly arranged tubercles to which the movable spines are attached. Five rows of... more
The sea urchin builds its spicules, the sharp crystalline “bones” that constitute the animal's endoskeleton, in the larval stage. The fully formed spicule ...
en.wikipedia.org/wiki/Sea_urchin - Similar
Sea Urchin Printout. Sea Urchins are invertebrates (echinoderms) that live on the seafloor. Sea Urchins have radial symmetry and long, protective spines.
www.enchantedlearning.com/subjects/invertebrates/echi... - Similar
The life cycle of a sea urchin starts by spawning directly into the sea. First, the male spurts out his sperm. Then the female comes and spurts out her eggs ...
library.thinkquest.org/J001418/urchin.html - Similar
The sea urchin, an amazing animal. A look at some microscopic fetures of interest to the amateur naturalist.
www.microscopy-uk.org.uk/mag/artjul00/urchin1.html - Similar
Apr 23, 2008 ... The sea urchin is a prickly-looking echinoderm, spherical in shape and covered with long movable spines. Learn more about the sea urchin.
animals.howstuffworks.com/marine-life/sea-urchin-info... - Similar
A detailed profile of the Japanese sushi item Uni (Sea Urchin)
www.sushifaq.com/sushi-items/sushi-items-uni.htm - Similar
My friend Bill and I eating sea urchins (uni)out of the water in Cozumel, Mexico .
www.youtube.com/watch?v=Q9Kkb3Gfaqg - Similar
the intimate life of the sea urchin revealed. ... Red Sea Urchin Barren ( Strongylocentrotus franciscanus) Added to. Quicklist0:32 ...
www.youtube.com/watch?v=PakhDt8W4I4 - Similar
This is a site devoted to the interaction of a leading lab at Stanford University, under Dr. David Epel, with high school science teachers.
www.stanford.edu/group/Urchin/ - Similar
The genome of the California Purple Sea Urchin (Strongylocentrotus purpuratus) has been sequenced and annotated by the Sea Urchin Genome Sequencing ...
www.hgsc.bcm.tmc.edu/projects/seaurchin/ - Similar
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