- 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
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- 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
- Phylum Porifera | manoa. hawaii. edu ExploringOurFluidEarth
Sponges are simple invertebrate animals that live in aquatic habitats Although the majority of sponges are marine, some species live in freshwater lakes and streams
- 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
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