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AQUATIC INVERTEBRATES

andreaencinasmena

Created on February 23, 2021

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Transcript

Claudia 4ºA

Aquatic invertebrates

INDEX

2. Cnidarians

1. Echinoderms

4. Quiz time!

3. Poriferans

5. Thanks

Echinoderms

Echino means "prickly" and derm means "skin". Most echinoderms have a prickly structure on the outside. They have an internal skeleton and tube feet, which help them attach to things and move around.

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cnidarians

Cnidarians do not have a head, or a brain, but they do have a mouth! It is their only body opening. The mouth is usually surrounded by tentacles containing venom or poison. Which they use to catch their prey.

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PORIFERANS

Poriferans live at the bottom of the ocean. They attach themselves to rocks and do not move around. There are pores on their bodies, which water passes through. This is how they get their food.

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Quiz time!

poriferans

cnidarians

echinoderms

Do poriferans move around? Where do they live?

Do cnidarians have a head or a brain? Where is the venom or the poison?

Do echinoderms have an external skeleton or an internal skeleton?

+Click for the answer

+Click for the answer

+Click for the answer

thanks!

Claudia 4ºA