WebJun 8, 2024 · Figure 28.1 B. 1: Sponge morphology: The sponge’s (a) basic body plan is a cylinder shape with a large central cavity. The specialized cell types in sponges (b) each perform a distinct function. While sponges (excluding the Hexactinellids) do not exhibit tissue-layer organization, they do have different cell types that perform distinct functions. WebSponges are considered the oldest animal group. They are multicellular but don’t have tissues or organs The name porifera means ‘pore bearer’ in Latin (a pore is a tiny hole). A sponge’s body is covered by a skin, one cell thick. This skin has lots of small pores and a few large openings.
ADW: Demospongiae: INFORMATION - Animal …
WebNov 25, 2024 · The living contents of the gemmules escape out through the micropylar opening and form the new sponge. These new sponge gives rise to summer generation by producing spermatozoa and ova. The summer generation dies off in autumn living behind gemmules which hatch in spring. The life history of such sponges illustrates alternation … WebPlease describe the lifestyle of SPONGES. Components and characteristics that you should address would include: Body symmetry Types of specialized cells seen in the sponges Mode of nutrition and HOW they feed Reproduction Life span Habitat Specializations that are dedicated to this group. raw bones for dogs safe
Filter-feeding in Reef Sponges - Coral Reef
Websponge, 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. Simple sponges are hollow cylinders with a large … sponge, any of the primitive multicellular aquatic animals that constitute the … Form and function. Sponges are unusual animals in that they lack definite organs … Classification Distinguishing taxonomic features. The general architecture of the … WebMar 5, 2024 · One of the more amazing things about sponges is their ability to suffer damage. Because the cells are not linked in a tissue, it is possible for them to be separated and then come together again. Some species, such as the freshwater sponge Ephydatia fluviatilis, can be pushed through a sieve. raw bones that are safe for dogs