Porifera, commonly known as sponges, are multicellular aquatic organisms that lack true tissues and organs. They are characterized by a porous body structure and a water-filled cavity known as the spongocoel. Sponges are found in a variety of habitats, including oceans, rivers, and lakes, and can range in size from a few millimeters to several meters. They have a lifespan of up to 20 years and their current population is estimated to be around 5,000 species. Sponges are filter feeders, meaning they feed on small particles in the water. They are also capable of asexual reproduction, which helps them to quickly repopulate their environment.
Name Origin: Porifera is a taxonomic group of aquatic animals that are commonly referred to as sponges. The name Porifera is derived from the Latin words "porus" meaning "pore" and "ferre" meaning "to bear". This is in reference to the many pores and channels that are found in the bodies of these animals, which are used to filter water and capture food particles.
Related Species: Demospongiae, Hexactinellida, Calcarea