Search results
Sponges (also known as sea sponges), the members of the phylum Porifera (/ p ə ˈ r ɪ f ər ə ˌ p ɔː-/ pər-IF-ər-ə, por-; meaning 'pore bearer'), are a basal animal clade as a sister of the diploblasts.
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 are very simple creatures with no tissues. All corals require saltwater to survive. While most sponges are found in the ocean, numerous species are also found in fresh water and estuaries. Regardless of these differences, sponges are important inhabitants of coral reef ecosystems.
sponge, Any of some 5,000 species (phylum Porifera) of permanently affixed (sessile), mostly marine, solitary or colonial invertebrates, found from shallow to deep (more than 30,000 ft, or 9,000 m) waters.
Sponge - Anatomy, Filtering, Reproduction: Sponges are unusual animals that lack definite organs to carry out their various functions. The most important structure is the water-current system, which includes the pores (ostia), the choanocytes (collar cells), and the oscula.
May 27, 2024 · 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.
Feb 9, 2019 · Sponges (Porifera) are a group of animals that includes about 10,000 living species. Members of this group include glass sponges, demosponges, and calcareous sponges. Adult sponges are sessile animals that live attached to hard rocky surfaces, shells, or submerged objects.
Sponges are a diverse group of sometimes common types, with about 5000 species known across the world. Sponges are primarily marine, but around 150 species live in fresh water.
A sponge is a member of the phylum Porifera. It is a simple animal with many cells, but no mouth, muscles, heart or brain. It is sessile: it cannot move from place to place the way most animals can. A sponge is an animal that grows in one spot like most plants do. Nevertheless, sponges are quite successful.
The phylum Porifera comprises the sponges. 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. They are found in shallow ocean environments to depths as great as five kilometers (km).
