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Annelida

Annelida. By: Jessica Livingstone, Mark McPhee, Raouf Fellah, Melissa Merks. Introduction. Kingdom Animalia Superphylum Lophtrochozoa Phylum Annelida. Introduction. How many? About 17 000 types found all over the world What are they ? Class Polychaeta (marine worms)

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Annelida

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  1. Annelida By: Jessica Livingstone, Mark McPhee, Raouf Fellah, Melissa Merks

  2. Introduction • Kingdom Animalia • SuperphylumLophtrochozoa • Phylum Annelida

  3. Introduction • How many? • About 17 000 types found all over the world • What are they? • Class Polychaeta (marine worms) • Live in tubes or permanent burrows. • Active swimmers, crawlers or burrowers. • Class Oligochaeta (earthworms) • Live underground in moist soil. • Aerate and enrich soil. • Class Hirundinea (leeches) • Live in freshwater. • Used medicinally: remove excess blood after surgery, keep blood • from clotting.

  4. Introduction • Significance to ecosystem? • Earthworms expand pharynx to ingest soil. • Soil is then excreted as feces (scientifically known as humus which contains important nutrients).

  5. Characteristics • Coelom

  6. Characteristics • Body Wall

  7. Characteristics • Parapodia

  8. Characteristics • Nervous System

  9. Characteristics • Sense Organ

  10. Characteristics • Circulation and respiratory structures

  11. Life Cycle& Reproduction • Fertilization • Egg • Cocoon • Hatchling • Adult

  12. Evolution • Ancestor: Flat Worm • Polychaetes • Oligochaetes • Sea and Terrestrial Soil

  13. Habitat • Wide range of physiological tolerances • Soil • Sea/Oceans

  14. Interesting Facts • A preserved specimen of Eunice (Eunicidae) at the Museum of Natural History in Washington D. C. is close to 3 m in length and around 5 cm in diameter in its preserved and contracted condition. • The largest leech in the world, found in South America and reaches more than 40 cm in length.

  15. Sources • http://www.britannica.com/EBchecked/topic/26308/annelid/31789/Evolution-and-paleontology • http://quizlet.com/8533854/lecture-18-annelids-and-lophophorates-flash-cards/ • http://animaldiversity.ummz.umich.edu/accounts/Annelida/ • http://www.teara.govt.nz/en/diagram/15491/earthworm-life-cycle • http://annelidsh.blogspot.ca/2007/03/reproduction.html • http://www.rugusavay.com/information-on-annelid-anatomy-classification-habitats/ • https://education.yahoo.com/reference/encyclopedia/entry/Annelida • http://www.thefreedictionary.com/statocyst

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