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Hippospongia communis also known as the honeycomb bath sponge, is a marine sponge in the phylum Porifera. Hippospongia communis is a brown or darker color [1] and very porous, due to its many oscules, and is commonly found in shallow waters of the Mediterranean. Throughout history, H. communis has been used for cleaning, medicine, and cooking ...
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Red volcano sponge (Acarnus erithacus, Poecilosclerida). Spermatocytes develop from the transformation of choanocytes and oocytes arise from archeocytes . Repeated cleavage of the zygote egg takes place in the mesohyl and forms a parenchymella larva with a mass of larger internal cells surrounded by small, externally flagellated cells.
Chondrocladia lyra, also known as the lyre sponge or harp sponge, is a species of carnivorous deep-sea sponge first discovered off the Californian coast living at depths of 10,800–11,500 feet (3,300–3,500 m) by Welton L. Lee, Henry M Reiswig, William C. Austin, and Lonny Lundsten from the Monterey Bay Aquarium Research Institute (MBARI).
[2] [3] [11] Sponge fishing practices have slowly changed over time as new technology has developed and sponge farming is now in use to decrease stress on wild S. officinalis populations. [3] [11] Sponge farming is also recommended as a solution to reducing marine organic pollution, especially from fish farms. [3] [2] [12] [13]
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Sponge diving is underwater diving to collect soft natural sponges for human use. Display of natural sponges for sale on Kalymnos in Greece.
The earliest animals were marine invertebrates, that is, vertebrates came later. Animals are multicellular eukaryotes, [note 1] and are distinguished from plants, algae, and fungi by lacking cell walls. [1]