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How long have sea urchins been around?

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  • How long have sea urchins been around?


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Sea urchins have also been reported to cause erosion of reefs ... The Sea Urchin Quiz. Where do sea urchins ... Around 10000; Where is a sea urchin’s ...
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Positive: 61 %
... species of recognised sea urchin, ... sea urchins are covered in long thin spikes ... around in the water. Sea urchins have five paired ...
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Positive: 58 %

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Sea Urchins: A Chemical Perspective. ... and sea urchins have been known ... we can appreciate their beauty as they cruise around our aquaria ...
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Positive: 61 %
In order to treat a sea urchin sting, ... Sea urchins have flat or globe shaped ... Keep the wound in the water for at least an hour or as long as you can ...
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Positive: 56 %
Sea urchin; Scientific classification; ... Typical sea urchins have spines that are 1 to 3 ... Sand dollars and heart urchins have been highly successful ...
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Positive: 42 %
Bibliography. Wikipedia. (2010). Sea Urchin. Retrieved 19th of July, 2010, from http://en.wikipedia.org/wiki/Sea_urchin#Digestion; HawaiianForest.Com. (2008).
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Positive: 19 %

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