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Sponge - Wikipedia Sponges are multicellular organisms consisting of jelly-like mesohyl sandwiched between two thin layers of cells, and usually have tube-like bodies full of pores and channels that allow water to circulate through them
What is a sponge? - NOAAs National Ocean Service While sponges, like corals, are immobile aquatic invertebrates, they are otherwise completely different organisms with distinct anatomy, feeding methods, and reproductive processes
Sponge | Definition, Features, Reproduction, Facts | Britannica sponge, any of the primitive multicellular aquatic animals that constitute the phylum Porifera They number approximately 5,000 described species and inhabit all seas, where they occur attached to surfaces from the intertidal zone to depths of 8,500 metres (29,000 feet) or more
Amazon. com: Sponges Discover top-rated sponges that clean without scratching, resist odors, and last longer Ideal for dishes, counters, bathrooms, and more
Sponge Animal Facts - A-Z Animals Sponges are one of the simplest, and perhaps oldest, animals on the entire planet They are marine animals that are easily mistaken for plant life due to their lack of a nervous system, internal organs, and mobility
Sponges - MarineBio Conservation Society Sponges are multicellular organisms belonging to the phylum Porifera They are one of the simplest and oldest forms of animals on Earth Sponges are considered animals because they are multicellular and lack cell walls, which distinguishes them from plants and fungi
What are sponges and why do they matter? - NOAA Ocean Exploration Sponges are very different from other animals They are immobile, stuck to whatever surface they grow on They have no nervous system to send messages within their bodies, no digestive system to process food, and no circulatory system to pump blood
Characteristics and life cycle of sponges | Britannica sponge, Any of some 5,000 species (phylum Porifera) of permanently affixed (sessile), mostly marine, solitary or colonial invertebrates, found from shallow to deep (more than 30,000 ft, or 9,000 m) waters