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ECHDODERM

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BC: I hope you learned from this presentation. By: Ian Shannon and Jonathan Flores

FC: Chapter 11.5 By: Ian and Jonathan

1: Echinoderms look like stars and they radial symmetry. They are invertebrates on the ocean floor. Nick named "spiny skinned" because the epidermis is very jagged and spiky. They have exoskeletons. They have plates made of calcium.

2: Echinoderms regenerate but in this picture the sea star has probably lost a leg and regenerated a pair and a spare.

3: The way that sea stars have to get food is the little legs underneath them and then there is a mouth in the center underneath them.

4: This is an example of the spiny kind. Unlike humans, instead of bones they have calcium build ups.

5: Here is a normal sea star | Here is a brittle star | this is a sssea urchin

6: hERE IS A LABELED SEA STAR

7: The water vascular system consists of fluid tubes. It pumps water to the feet/limbs of the echinoderm. That how there limbs are spiky beside the sharp calcium plates.

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  • By: Jonathan F.
  • Joined: almost 7 years ago
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  • Title: ECHDODERM
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  • Published: almost 7 years ago

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