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| 01 Jan 2014 01:56 PM |
Sponges are animals of the phylum Porifera (/pɒˈrɪfərə/; meaning "pore bearer"). They are multi-cellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells. Sponges have unspecialized cells that can transform into other types and which often migrate between the main cell layers and the mesohyl in the process. Sponges do not have nervous, digestive or circulatory systems. Instead, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes.
Added by adventures346: They are also dish washer tools u use to clean toilets |
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| 01 Jan 2014 01:57 PM |
| They also live in pineapples. |
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Radiopack
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| Joined: 10 Nov 2012 |
| Total Posts: 664 |
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