The Shape of Life: Porifera
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Description: Introduction to the phylum, including photographs, classification, and habitat.
The Shape of Life . Porifera | PBS Sponges are considered the oldest of the animal phyla. The name Porifera means "pore bearer" in Latin. The surface of a sponge's body is covered by a skin, one cell thick. This skin is penetrated by numerous small pores and a few large openings. These are respectively the entrances and exits for a complex system of canals and chambers through which the sponge pumps a current of water.
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| Page title: | The Shape of Life . Porifera | PBS |
| Keywords: | PBS, PBS Online, PBS Interactive, KCET, THE SHAPE OF LIFE, Sea Studios, Mark Shelley, Nancy Burnett, sponges, porifera, animal, body plan |
| Description: | A companion website to THE SHAPE OF LIFE, an eight-part series that takes viewers to unexplored places and answers fundamental questions about the origins of life on Earth. |
| IP-address: | 54.211.123.179 |