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lol

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los gifts estan genial

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Cystoidea
Animal
Cystoids are an extinct class of Echinodermata that lived attached to a stem in the sea floor and is distinguished from other echinoderms by open triangular pores. Wikipedia
Scientific name: Cystoidea

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Equinoderms must reproduce by fragmentetion or division

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I dont found nothing

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Some echinoderms have mechanoreceptors

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Some sea cucumbers have    photoreceptor
They have simple eye and has more than 2

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Ne convient pas aux antiépileptiques.

Not suitable for epileptics

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Candela M. 1.C
Layan R. 1.C
Gema A. 1.C

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https://owlcation.com/stem/10-Things-You-Didnt-Know-About-Echinoderms

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It is true that Echinoderms regenate their lost part of their body? Explain Why

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It is true that Echinoderms regenate their lost part of their body? Explain Why

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Echinoderms are the most complex invertebrates according to scientific

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Echinoderms are the most complex invertebrates according to scientific

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So Ana , put us good marks because it wasn't easy to do ECHINODERMS :)

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If you put a sea cucumber in fresh water , it will explode

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If you put a sea cucumber in fresh water , it will explode

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It is called tube feet

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The Sea urchin has two  ways of excreting waste. One involves nutrients being broken down and sent through the pharynx, intestines, and then out through the anus. Like the cucumber, the instestines wrap around several times.
In the other way the sea urchin excrete waste  by releasing it in a liquid form through pores all over the body
http://excreting101.weebly.com/echinodermata.html

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Has the organ known as tube feet.In the sea cucumber the tube feet is used to absorb nutrients instead of excreting waste. After being taken in by the tube feet, the nutrients are broken down and the waste is sent through an organ called the pharynx. The pharynx connect directly to the intestine which wraps around coils several times. Then waste  finally go out through the anus
.http://excreting101.weebly.com/echinodermata.html

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The start fish has no excretory organs. They have a water-vascular system that is made up of cells focus on taking in waste and passing it along through tiny openings. They pass it along to an area known for star fish as the tube feet that put out excretion in the form of urine . http://excreting101.weebly.com/echinodermata.html

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Almost all echinoderms have an open circulatory system except the parastichopus californicus
(sea cucumber) that have a close one,the blood vessels of the sea cucumber contain a layer of muscle and nerve cells The Sea cucumber has about 120-150 hearts in its small intestine which pump blood into intestinal plates. Blood passes from the Dorsal Pulmonary Vessel
http://the-circulatory-system1.weebly.com/phylum-echinodermata.html

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We call them slenderman

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They breathe by the gills and use special tubes to circulate water and oxygen through their bodies.
http://study.com/academy/lesson/echinodermata-respiratory-system.html

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http://study.com/academy/lesson/echinodermata-digestive-system.html#lesson

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http://study.com/academy/lesson/echinodermata-digestive-system.html#lesson
1:57 TO 2:26
The echinoderms digestive system is simple. Only consist about 4 main parts:
The mouth, the stomach ,the intestine and the anus

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Why some Echinoderms have flexible skeletons?

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Why some Echinoderms have flexible skeletons?

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Some Echinoderms have interlocking plates of calcium Carbonate with form a very hard internal skeleton such as Sea Urchins.
Others have more flexible skeletons to allow them to flex and bend their arms
http://echinodermsg.blogspot.com.es/2007/04/habitat-and-adaptations.html

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Why does the echinoderm burry themselves and go to habitats that matches their skin color?

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Why does the echinoderm burry themselves and go to habitats that matches their skin color?

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The Echinoderms use to stay in surrounding that matches with the color of their skin

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The Echinoderms use to go to sandy areas but others use the skin of animals, for example the skin of a fish

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They live in marine habitats but they can survive in a wide variety of places. Sea Cucumber and Sea Stars prefer rocky areas while others prefer sandy areas for burry themselves.
http://echinodermsg.blogspot.com.es/2007/04/habitat-and-adaptations.html