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Welcome to MooMooMath and Science.

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In this video I would like to talk about the phylum echnoderms.

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Echnoderms belong in the animal kingdom.

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They are organisms found in the ocean and most of the time on the bottom of the ocean

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floor.

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Let's take a look at the five main groups of echnoderms.

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All echnoderms have a radial symmetry and they usually have five or more arms.

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They don't have a heart, a brain, or even eyes.

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Their mouth is generally found underneath and their anus is found on top.

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They have suction pads on their extremities.

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Let's take a look at these.

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Derms do have the ability to move and they move in various ways.

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Most are carnivores and they feed on sponges and other mollusks.

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But many are scavengers and some are decomposers.

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Many echnoderms can regenerate their limbs.

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And finally they reproduce both sexually and some reproduce asexually through fragmentation.

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Echnoderms are pretty cool phylum.

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Thanks for watching and MooMooMath uploads a new math and science video everyday.

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