Download - Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

Transcript
Page 1: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

EchinodermataEchinodermata

By Eryia & AmpBy Eryia & Amp

Page 2: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

General CharacteristicsGeneral Characteristics

Spiny skinSpiny skin Internal skeletonInternal skeleton Water-vascular systemWater-vascular system DeuterostomesDeuterostomes Symmetrical animalsSymmetrical animals They have many small, movable They have many small, movable

extensions of the water-vascular extensions of the water-vascular system called tube feet.system called tube feet.

Page 3: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

AdaptationsAdaptations The echinoderm will The echinoderm will

change its body shape change its body shape from bilaterally from bilaterally symmetrical to symmetrical to radically symmetrical, radically symmetrical, and in the process, and in the process, settle down on the sea settle down on the sea floor.floor.

They crawl slowly They crawl slowly along the ocean floor along the ocean floor which allows them to which allows them to move from place to move from place to place.place.

Page 4: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

3 Interesting Facts3 Interesting Facts

Starfish do not Starfish do not have blood.have blood.

They also have They also have “tube feet” “tube feet” which allows which allows them to move.them to move.

Not all starfish Not all starfish have 5 arms.have 5 arms.

Page 5: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

CLASSIFICATIONCLASSIFICATION

Taxonomists divide the Taxonomists divide the 7,000 species of 7,000 species of echinoderms into six echinoderms into six classes. Here are a classes. Here are a few…………………..few…………………..

Page 6: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

Class CrinoideaClass Crinoidea

Includes : sea lilies and feather starsIncludes : sea lilies and feather stars In both types of crinoids, five arms extend from the body In both types of crinoids, five arms extend from the body

and branch to form many more arms- up to 200 in some and branch to form many more arms- up to 200 in some feather star species.feather star species.

The mouth faces up in crinoids, while in most other The mouth faces up in crinoids, while in most other echinoderms the mouth faces toward the sea bottom.echinoderms the mouth faces toward the sea bottom.

Cilia on the arms transport trapped food to the crinoid’s Cilia on the arms transport trapped food to the crinoid’s mouth at the base of the arms.mouth at the base of the arms.

Page 7: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

Class OphiuroideaClass Ophiuroidea

The 2,000 species of basket stars and brittle The 2,000 species of basket stars and brittle stars make up the largest echinoderm class.stars make up the largest echinoderm class.

Members of this class are distinguished by Members of this class are distinguished by their long, narrow arms, which allow them to their long, narrow arms, which allow them to move more quickly than other echinoderms.move more quickly than other echinoderms.

Basket stars and brittle stars live primarily on Basket stars and brittle stars live primarily on the bottom of the ocean, often beneath stones the bottom of the ocean, often beneath stones or in the crevices and holes of coral reefs.or in the crevices and holes of coral reefs.

Page 8: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

Class AsteroideaClass Asteroidea

The sea star, or starfish belong to this class. The sea star, or starfish belong to this class. They exist in a variety of colors and shapes.They exist in a variety of colors and shapes. Sea Stars are economically important Sea Stars are economically important

because they prey on oysters, clams, and because they prey on oysters, clams, and other organisms that humans use as food.other organisms that humans use as food.

Page 9: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

Crown-of-thorns starfishCrown-of-thorns starfish

Kingdom: AnimaliaKingdom: Animalia Phylum: EchinodermataPhylum: Echinodermata Class: AsteroideaClass: Asteroidea Order: SpinulosidaOrder: Spinulosida Family: AcanthastFamily: Acanthast Genus: Acanthaster Genus: Acanthaster Species: PlanciSpecies: Planci

Page 10: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

Crown-of-thorns Crown-of-thorns starfishstarfish

Habitat: The Great ReefsHabitat: The Great Reefs Food Source: coral polyps. Food Source: coral polyps. Size:40 mm in diameterSize:40 mm in diameter

Page 11: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

Royal sea starRoyal sea star

Kingdom: AnimaliaKingdom: Animalia Phylum: Phylum:

EchinodermataEchinodermata Class: AsteroideaClass: Asteroidea Order: PaxillosidaOrder: Paxillosida Family: Family:

AstropectinidaeAstropectinidae Genus: Genus:

AstropectenAstropecten Species: Species:

ArticulatusArticulatus

Page 12: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

Royal Sea StarRoyal Sea Star

Habitat: tropical coral reefs Habitat: tropical coral reefs Food Source: algae Food Source: algae Size: under ½ in. to over 3 ft. in Size: under ½ in. to over 3 ft. in

diameter.diameter.

Page 13: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

Antedon bifidaAntedon bifida

Kingdom: Kingdom: Animalia Phylum: Phylum:

Echinodermata Class: Class: Crinoidea Order: Order: Comatulida Family: Family: Antedonidae Genus: Genus: Antedon Species: Species: bifida

Page 14: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

Antedon bifidaAntedon bifida Habitat: rocks, sedentary Habitat: rocks, sedentary

animalsanimals Food Source: algaeFood Source: algae Size: ½ in. to over 3 ft. in Size: ½ in. to over 3 ft. in

diameter.diameter.

Page 15: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

Is it eaten by Is it eaten by humans ??humans ??

Page 16: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

Yes!!!!!, they are. Humans Yes!!!!!, they are. Humans usually stay away from usually stay away from them but in countries like them but in countries like Japan, they are eaten. Japan, they are eaten.

Page 17: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

Does human pollution affect Does human pollution affect it?it?

Page 18: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

Yes they are affected by the Yes they are affected by the human pollution. Sewage human pollution. Sewage discharge and urban runoff has discharge and urban runoff has been what's most affecting been what's most affecting these starfishthese starfish

Page 19: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

VideosVideos

http://news.bbc.co.uk/earth/hi/earth_news/http://news.bbc.co.uk/earth/hi/earth_news/newsid_8378000/8378512.stmnewsid_8378000/8378512.stm

Page 20: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

VocabularyVocabulary Water-vascular system:Water-vascular system: a network of a network of

water-filled canals inside their body.water-filled canals inside their body. Tube feet:Tube feet: small, movable extensions of small, movable extensions of

the water-vascular system, which aid in the water-vascular system, which aid in movement, feeding, respiration, and movement, feeding, respiration, and excretion.excretion.

Ossicles:Ossicles: an endoskeleton composed of an endoskeleton composed of calcium carbonate plates.calcium carbonate plates.

Page 21: Echinodermata By Eryia & Amp. General Characteristics Spiny skin Spiny skin Internal skeleton Internal skeleton Water-vascular system Water-vascular system.

ResourcesResources

http://www.oceanicresearch.org/education/http://www.oceanicresearch.org/education/wonders/echinoderm.htmlwonders/echinoderm.html

http://marinelife.about.com/od/invertebrateshttp://marinelife.about.com/od/invertebrates/tp/seastarfacts.htm/tp/seastarfacts.htm

http://news.bbc.co.uk/earth/hi/earth_news/http://news.bbc.co.uk/earth/hi/earth_news/newsid_8378000/8378512.stmnewsid_8378000/8378512.stm

Feldkamp, Susan, and I. Edward.Alcamo. Feldkamp, Susan, and I. Edward.Alcamo. ModernBiology.Austin, TX: Holt, Rinehart and ModernBiology.Austin, TX: Holt, Rinehart and Winston, 2002 p.780-783Winston, 2002 p.780-783

http://animaldiversity.ummz.umich.edu/http://animaldiversity.ummz.umich.edu/site/accounts/pictures/site/accounts/pictures/Astropecten_articulatus.htmlAstropecten_articulatus.html