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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
Sponges are animals with dense skeletons that are highly adapted to their environments, although it is easy to see why they may be mistaken for plants Sponges are found in a wide variety of colors, shapes, and sizes – and scientists believe that the colors of the sponge may act as a protection from the sun’s harmful UV rays
- 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
- Sponges: Characters, Classification and Types | Zoology
Sponges differ from Protozoa in having the following features: 1 The canal system 2 The characteristic skeleton 3 The development of a multicellular body from a fertilised egg by cleavage; and in this feature the sponges become more complex than a colonial protozoan and resemble with the Metazoa Therefore, its protozoan affinity stands no
- 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
- Sea Sponges or Porifera - Definition, Types, Reproduction, and Examples . . .
Sea sponges, scientifically known as Porifera, are among the oldest and simplest multicellular animals on Earth These remarkable filter feeders have thrived in marine environments for over 500 million years, surviving multiple mass extinctions through their adaptable nature
- What Are Sponges and Why Do They Matter? - NOAA Ocean Exploration
Sponges help create habitat, filter particles from seawater, contribute to carbon, nitrogen, and silica cycling They have also been used for bathing since ancient Egypt
- Sponge Animal Facts - Demospongiae - 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 nervous system, internal organs, and mobility
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