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Echinoderm Diversity Part 3: Classes Echinoidea and Holothuroidea (Sea Urchins and Sea Cucumbers)

By Professor Dave ExplainsFrom boclips.com
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To finish things up with Echinodermata, we will look at class Echinoidea, the sea urchins, and class Holothuroidea, the sea cucumbers. What are these spiny things we call urchins? What is their anatomy like? What the heck is a sea cucumber? These are fascinating creatures, so let's learn about them!

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Explainer
Life Sciences
Biology
Higher education
Secondary
Advanced Secondary

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