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- These differ from the other classes of sponges in that their cells are syncytial (multinucleate and only a few cells or even one cell can cover the entire skeleton) Hexactinellida Calcerea Demospongia HomescleromorphaWhich statement about sponges is false? Their bodies are supported by silicaceous or calcareous spicules. They feed via flagellated choanocytes. They have cell layers and true organs. Some species live in fresh water. Their bodies have an extracellular matrix composed of collagen and adhesive glycoproteins.PLATYHELMINTHES NEMATODA body cavity germ layers symmetry monoecious or dioecious?
- What features of animals separate them from their nearest relative the choanoflagellates? Choose all that apply the synthesis of collagen the formation of a gastrula during early embryo development O persistent multicellularity lack of a cell wall ability to adhere cells togetherPhylum Platyhelminthes Nemertea Gastrotricha Habitat Symmetry Germ Layer Give two classes belonging in each phylum. Locomotion Digestive Respiratory Circulatory System Excretory Nervous Reproductive Fertilizatio nWhich of the following structures would be found in the mesohyl of a sponge? amoebocytes and choanocytes amoebocytes and spicules spicules and choạnocytes amoebocytes and polyps
- General characteristics of protozoans Internal and external structures Feeding strategies Locomotion Adaptations ReproductionArrange and match in chronological order the pathway of water in syconoid sponges: Dermal ostium Incurrent canal Prosopyle Radial canal Apopyle Spongocoel OsculumFill in the blank to escribe the route of water through an synconoid sponge by listing the numbers in the correct order. To answer - write the numbers with a space in between - e.g. 1 2 3 4 5 6 7 1. osculum 2. spongocoel 3. ostium in porocyte 4. apopyle 5. radial canal 6. prosopyle 7. incurrent canal
- compare choanoflagellates and choanocytes of sponges based on their morphological features: please indicate each of their characteristsics cell shape collar complexmicrovilliflagellumCompare and contrast the body coverings of a free-living turbellarian, a monogenaen fluke, a cestode, and a nematode. Which problems does each solve or create? Be sure to consider locomotion, permeability, ciliation, and habitat, and to think of the entire life cycle.Please match the term with the description. the anterior end of a tapeworm that attaches to the inside lining of its host's digestive tract [ Choose ] [Choose] medusa describes the number of tissue layers in polyp coelom Cnidarians cnidocytes monoecious the cells that move water through a sponge gastrovascular cavity acoelom pharynx the cells that produce nematocysts scolex gonozooid osculum pseudocoelom triploblastic choanocytes diploblastic spongocoel water leaves a sponge through this opening proglottid spicule ventral sucker an incomplete digestive tract a planarian uses this to suck up food particles [ Choose ] a fluke uses this to hang onto its host's [ Choose ] tissues > > >