IMMU7020 Haematopoiesis and Immunity Afshin Raouf Ph. 787-2294 [email protected].
Annelida By: Jessica Livingstone, Mark McPhee, Raouf Fellah, Melissa Merks.
-
Upload
caren-cameron -
Category
Documents
-
view
224 -
download
3
Transcript of Annelida By: Jessica Livingstone, Mark McPhee, Raouf Fellah, Melissa Merks.
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.
IntroductionSignificance to ecosystem?
Earthworms expand pharynx to ingest soil.
Soil is then excreted as feces (scientifically known as humus which contains important nutrients).
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.
Sources http://www.britannica.com/EBchecked/topic/26308/annelid/31789/E
volution-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