1 / 12

ECHINOIDEA

ECHINOIDEA. By: Kristen Bennett (100110937), Brianna Corbin (100111811), Nate Ells (100109466) Danielle Visentin (100110678). ECHINOIDEA. Kingdom: Animalia Phylum: Echinodermeta Class: Echinoidea. PHYSICAL CHARACTERISTICS. Most have radial symmetry

nevina
Download Presentation

ECHINOIDEA

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ECHINOIDEA By: Kristen Bennett (100110937), Brianna Corbin (100111811), Nate Ells(100109466)Danielle Visentin (100110678)

  2. ECHINOIDEA Kingdom: Animalia Phylum: Echinodermeta Class: Echinoidea

  3. PHYSICAL CHARACTERISTICS • Most have radial symmetry • Hard calcareous shell called test • Rows of tube feet • Mouth is called Aristotle's lantern • Have spines to protect and help with locomotion

  4. Protection Characteristics • Test can be used as pinchers (pedicellariae) • Some pedicellariae are poisonous • Spiny posterior used for protection

  5. Habitat Can be found: • Saltwater all over the world • Rock pools • Coral Reefs • Rock beds • Sandy lagoons

  6. Predators Most Common Predators • Crabs • Large fish • Sea otters • Birds • Eels • Humans

  7. Prey • Algae • Sea Grasses • Seaweeds • Sessile organisms • Carcass of dead organisms

  8. Reproduction • Females are spawners and lie million eggs. • Males fertilize with sperm. • Echinoid's gonads are connected to small opening in the body called gonophores. This is where the sperm and egg are released.

  9. Phylogeny of Echinoida

  10. Ancestral Echinoids • Non rigid test • Mouth and anus on opposite poles • External aperture to water vascular system • Tube feet emerging between ambulacra plates in adult Bothriocidariseichwaldi

  11. Evolution of Echinoidea • Development of a more rigid test • Improvement of the water vascular system for respiration, locomotion, and food gathering. • Diversification of appendages for special function • Increased efficiency in reproduction Echinocystitoida Ordovician to Permian Red Sea Urchin Of Today

  12. Bibliography • http://feelpositive.wordpress.com/2011/09/27/the-sand-dollar-theory/ • http://siera104.com/bio/echin.html • http://animals.nationalgeographic.com/animals/invertebrates/sea-cucumber/ • http://beachchairscientist.wordpress.com/2008/09/10/what-eats-sea-urchins/ • http://dj003.k12.sd.us/SCHOOL%20NOTES/bk2chpt%204.htm • http://www.ifood.tv/blog/how-to-store-blue-crabs • http://en.wikipedia.org/wiki/File:Seagull_flying_(5).jpg • http://www.fish-journal.com/2011/10/sea-urchin.html • http://matthewvonhumboldt.tumblr.com/post/12883412206/sand-dollar • http://posadadelvalle.blogspot.com/2011/03/discovering-coast.html • http://www.imagegossips.com/2011/12/extraordinary-crabs-collection/ • http://ocean.nationalgeographic.com/ocean/photos/sea-urchins/ • http://simply-science-nbep.blogspot.com/2011/06/algae-vs-plants.html • http://www.nzunderwaterlife.000space.com/seaweed.htm • http://accessscience.com/loadBinary.aspx • http://www.marinespecies.org/photogallery.php?album=694&pic=47599 • http://www.geo.lsa.umich.edu/~kacey/ugrad/coral3.html • http://www.seadb.net/en_Sea-Urchins-Echinoidea_172.htm • http://worms.zoology.wisc.edu/urchins/SUfert_intro.html • Physiology of Echinoderms General editor: G.A. Kerkut by: John Binyon • Grizimek's Animal Encyclopaedia volume 1 editor: Neil Schlager 401 to 407

More Related