Echinoderms by Layan Rustom

geendozablue — 2017-04-22 07:18:06 UTC

geendozablue — 2017-04-22 07:22:29 UTC

Echinoderms have no main subgroups

geendozablue — 2017-04-22 07:22:45 UTC

Echinoderms are invertebrates

geendozablue — 2017-04-22 07:23:50 UTC

geendozablue — 2017-04-22 07:29:13 UTC

geendozablue — 2017-04-22 09:58:34 UTC

1st Question

geendozablue — 2017-04-22 09:59:28 UTC

2nd Question

geendozablue — 2017-04-22 10:00:00 UTC

3rd Question

geendozablue — 2017-04-23 12:16:44 UTC

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

geendozablue — 2017-04-23 12:22:56 UTC

My house is a skin

geendozablue — 2017-04-23 12:23:48 UTC

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

Habitat

geendozablue — 2017-04-23 12:25:44 UTC

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

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

geendozablue — 2017-04-23 12:27:45 UTC

4th Question

geendozablue — 2017-04-23 12:28:50 UTC

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

Why some Echinoderms have flexible skeletons?

geendozablue — 2017-04-23 12:31:13 UTC

geendozablue — 2017-04-23 12:37:36 UTC

5th Question

geendozablue — 2017-04-23 12:57:17 UTC

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

geendozablue — 2017-04-23 13:04:56 UTC

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

geendozablue — 2017-04-23 13:10:14 UTC

6th Question

geendozablue — 2017-04-23 13:18:53 UTC

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

SeaStars

geendozablue — 2017-04-23 13:26:10 UTC

geendozablue — 2017-04-23 13:27:02 UTC

Brittle Stars

geendozablue — 2017-04-23 13:31:27 UTC

We call them slenderman

geendozablue — 2017-04-23 13:36:34 UTC

geendozablue — 2017-04-23 13:40:51 UTC

geendozablue — 2017-04-23 13:41:51 UTC

Sea Urchins

geendozablue — 2017-04-23 13:44:48 UTC

Sea Cucumbers

geendozablue — 2017-04-23 14:32:51 UTC

7th question

candelaherondalefairchild — 2017-04-23 14:33:22 UTC

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

geendozablue — 2017-04-23 14:34:37 UTC

Sea Lilies

geendozablue — 2017-04-23 14:36:34 UTC

Star Feather

geendozablue — 2017-04-23 14:37:22 UTC

geendozablue — 2017-04-23 14:38:31 UTC

Echinoids

geendozablue — 2017-04-23 14:39:45 UTC

geendozablue — 2017-04-23 14:41:01 UTC

geendozablue — 2017-04-23 14:41:49 UTC

Fossil

geendozablue — 2017-04-23 14:42:25 UTC

8 question

candelaherondalefairchild — 2017-04-23 14:46:15 UTC

EXCRETORY SYSTEM

candelaherondalefairchild — 2017-04-23 14:47:20 UTC

STAR FISH

candelaherondalefairchild — 2017-04-23 14:48:42 UTC

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

SEA CUCUMBER

candelaherondalefairchild — 2017-04-23 14:51:17 UTC

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

They have bilateral symmetry

geendozablue — 2017-04-23 14:56:37 UTC

Echinoderms have no blood

geendozablue — 2017-04-23 14:56:58 UTC

SEA URCHIN

candelaherondalefairchild — 2017-04-23 14:57:08 UTC

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

They have tiny feet all over their arms

geendozablue — 2017-04-23 14:58:18 UTC

It is called tube feet

Sea stars have eyes

geendozablue — 2017-04-23 14:59:03 UTC

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

geendozablue — 2017-04-23 14:59:20 UTC

Echinoderms are the most complex invertebrates according to scientific

geendozablue — 2017-04-23 14:59:58 UTC

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

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

geendozablue — 2017-04-23 15:01:31 UTC

geendozablue — 2017-04-23 15:04:34 UTC

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

Credits

geendozablue — 2017-04-23 15:08:42 UTC

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

No apto para epilépticos

geendozablue — 2017-04-23 15:09:51 UTC

Ne convient pas aux antiépileptiques.
 
Not suitable for epileptics

9th question

candelaherondalefairchild — 2017-04-23 15:11:25 UTC

RECEPTOR ORGANS

candelaherondalefairchild — 2017-04-23 15:11:44 UTC

PHOTOCEPTORS

candelaherondalefairchild — 2017-04-23 15:12:53 UTC

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

MECHANORECEPTORS

candelaherondalefairchild — 2017-04-23 15:18:22 UTC

Some echinoderms have mechanoreceptors

CHEMORECEPTORS

candelaherondalefairchild — 2017-04-23 15:21:32 UTC

I dont found nothing

10th question

candelaherondalefairchild — 2017-04-23 15:22:26 UTC

candelaherondalefairchild — 2017-04-23 15:27:32 UTC

Equinoderms must reproduce by fragmentetion or division

11th Question

geendozablue — 2017-04-23 15:37:31 UTC

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

geendozablue — 2017-04-23 15:38:49 UTC

geendozablue — 2017-04-23 15:39:06 UTC

candelaherondalefairchild — 2017-04-23 15:44:03 UTC

los gifts estan genial

geendozablue — 2017-04-23 15:49:13 UTC

( ͡° ͜ʖ ͡°) ( ͡⊙ ͜ʖ ͡⊙) ( ͡◉ ͜ʖ ͡◉)

geendozablue — 2017-04-23 15:54:11 UTC

lol

geendozablue — 2017-04-23 15:55:03 UTC

geendozablue — 2017-04-23 15:57:46 UTC

geendozablue — 2017-04-23 15:58:34 UTC

geendozablue — 2017-04-24 15:08:04 UTC

Warning

geendozablue — 2017-04-24 15:08:22 UTC