References & Links
Bibliography
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University of Michigan, Img: Sponge Lifecycle , http://animaldiversity.ummz.umich.edu/site/resources/biodidac/spongelifecycle.gif/medium.jpg
Ruppert & Fox & Barnes, 2009, Invertebrate Zoology: A functional Evolutionary approach, 7thedition, Brooks/Cole, viewed 28 May
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Custodio.M, 2007, Porifera Research: Research Biodiversity, Innovation and Sustainability, Rio de Janeiro : National Museum, viewed 28th May
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