30 Examples of Poriferous

Miscellanea / by admin / July 04, 2021

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The poriferous or sponges are aquatic animalsinvertebrates belonging to the sub-kingdom of the Parazoa. It is believed that there are between 5,000 and 10,000 species of poriferous currently worldwide. For example: leucosolenia, sycon, agelas oroides.

Although most live in salty water, some varieties live in fresh water. Since they are animals almost immobile (since they can only move up to 4 millimeters in a day) they live at the bottom of the water (up to 9 thousand meters deep).

Poriferos — Sponges live in waters up to 9,000 meters deep.

Poriferous feeding

The poriferous they have no stomach: they feed through a process of absorption of nutrients that are carried by the water and enter your pores.

Their diet depends on the water currents and, after conserving the necessary nutrients, they expel the water. There are some exceptions of carnivorous porifers that feed on crustaceans, algae or cyanobacteria.

Poriferous structure

These invertebrate animals do not have muscles, internal organs, or nerves. His

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structure presents radial symmetry and is composed of two layers of cells: an external (pinacoderm) and another internal (coanoderm) and, eBetween the two, a space that receives the name of mesohilo.