porifera
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Porifera(Sponges)
Presented by: Jordan Minert
7th Period5/19/09
http://tolweb.org/
images/Porifera/
2464
http://tolweb.org/images/Porifera/2464
How they are classified.
Shape Hexactinellida
Demospongiae
Calcarea
http://tolweb.org/images/Porifera/2464
http://www.erin.utoronto.ca/~w3bio319/Porifera%20and%20Cnidaria_3.pdf
What do they look like?
• Asymmetrical
• Different colors
• Pores (little holes on the surface.)
• Different shapes
• And hard.
http://tolweb.org/images/Porifera/2464
Reproduction
• Sperm gets put out of the male sponge,
• Currents pick the sperm up,
• They get fertilized once coming incontact with a female sponge,
• making larva to grow in the ocean water.
• Fresh water sponges uses fermentation.
Food and digestive system!
Food Filter feeding
They take the protein out of the water through a post protein scaffold.
Digestive system
No digestive system
Circulatory system
No
Circulatory
System.
Repertory system
They absorbed oxygen out of the water.
(The air bubbles)
http://images.google.com/imgres?imgurl=http://www.featurepics.com/FI/Thumb/20070922/Bubbles-Under-Water-460945.jpg&imgrefurl=http://www.featurepics.com/selections/Bubble-Background-368.htm&usg=__JFIGBJBN4VUOe01dMMleSRr5CPA=&h=129&w=129&sz=5&hl=en&start=17&tbnid=7SAsYB7MxQYbiM:&tbnh=91&tbnw=91&prev=/images%3Fq%3Dbubbles%2Bin%2Bwater%26gbv%3D2%26hl%3Den
Environment
Manly in salt water
and some in fresh water,
Normally on or by rocks
or coral reefs.
http://animaldiversity.ummz.umich.edu/site/accounts/information/Porifera.html
Interaction with humans
• They use to be used for painting (Greece), bathing (Egypt), and toilet paper (Rome).
• Now when they find dead sponges they bleach them, dye them, and sell them as kitchen sponges and such.
5 interesting facts
• No tissue
• They are mobile
• 98% are marine and 2% are freshwater
• When being made into cleaning sponges no chemicals added to make the soft and squishy.
• Can live by the surface of the water and the bottom of the ocean.
Pictures
Bibliography
• http://tol.tolweb.org/Porifera/2464
• http://faculty.evansville.edu/de3/b10802/PPoint/Porifera/4-Porifera.ppt
• http://library.thinkquest.org/26502/level2/History/human.htm
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