examples of phylum porifera
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Answers:1. There are 3 types of symmetry in the animal phyla in order of increased complexity: (Asymmetrical, Radial, and Bilateral) An example of an animal with asymmetry is the sponge under the Poriferan phylum because they come in different shapes and sizes. Radial symmetry found only in Cniderians like hydra or jellyfish. Bilateral symmetry - tunicates, humans, starfish, worms, clams, and grasshopper. 2. Heterotrophic organisms 3. Not to sure on that means... 4. Neural fold 5. Sponges are sessile, which means they stay attached to one place. They filter in water and nutrients through the water, as well as oxygen, so it doesn't have to move. It reproduces by budding, which means it grows a little sponge out of the side of it. 6. Bilateral 7. Calcarea (calcerous sponges - having spicules), Demospongiae (horn sponges, like the bath sponge), Scleropongiae (coralline or tropical reef sponges), and Hexactinellida (glass sponges). 8. Means an animal with openings in this case "pores" 9. Anthozoa (true coral, sea anemones, sea pens), Cubozoa (box jellyfish), Hydrozoa (freshwater hydra, fire coral), Scyphozoa (true jellyfish) 10. Spicules are the only primitive form of support in sponges. 11. I'm not too sure on what you mean by compounds... 12. Respiration: Incurrent pore (where water enters), Osculum also known as the outcurrent pore (where water leaves the sponge), this all occurs in the spongocoel (body cavity that involves water circulation and where nutrients get absorbed) Answer is Spongocoel. 13. Osculum 15. Haploid cell. 16. Choanocytes (These cells just "feed" the sponge) 17. Sponges can reproduce in two ways: sexually and asexually. in sexual reproduction, they release sperm into the water in hopes that it will land inside another sponge and fertilize an egg cell. all sponges are hermaphrodites, meaning that they can produce both egg and sperm, but they can't fertilize themselves. In asexual reproduction, a small sponge will grow off the side of the parent sponge in a process called budding. some species will bud internally by packing the new sponge cells into vessicles called "gemmules," which are released into the water when the parent sponge dies. all sponges that are produced asexually are exact clones of the parent sponge. 18. Thread tube
Answers:1. The correct word is "phyla," not "phylums." 2. You need to do your own homework. I would be happy to help with specific questions, but not an entire homework assignment.
Answers:They are predatory, express radial symmetry, and while normally sessile (sedintary) can move at will. In most bio books, the sections of the chapter that contains this info lists Porifera, then Hydra (in evolutionary order) stating advantages of the latter over the former as it moves along, so you might want to check that as well.
Answers:There's the one Phylum - Chordata - notochord present at some time disappearing early in many forms, either temporary or permanent paired gill slits; dorsal nerve cord. The Vertebrates are one of four subphylums under Chordata. There are seven Classes that make up the vertebrate part of the subphylum Cyclostomata ( example: lamprey eel - no true jaws, scales or fins) Chondrichthyes (Examples-sharks, rays) Osteichthyes ( bony fishes ) Amphibia Reptilia Aves Mammalia