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- https://bio.libretexts.org/Courses/Evergreen_Valley_College/BIO_Majors_4A_4B_Lab_Manual_2023/26%3A_Animal_Diversity/26.03%3A_Lab_ReportThe preserved sponge specimens will be on display, but may differ from the ones directly mentioned in the lab handout. View the preserved tapeworm and the slides of the tapeworm scolex (head) and prog...The preserved sponge specimens will be on display, but may differ from the ones directly mentioned in the lab handout. View the preserved tapeworm and the slides of the tapeworm scolex (head) and proglottids (reproductive bodies). The preserved annelida specimens will be on display, but may differ from the ones directly mentioned in the lab handout. The phyla we viewed today were the porifera, the cnidaria, the nematoda and the arthropoda.
- https://bio.libretexts.org/Courses/Evergreen_Valley_College/BIO_Majors_4A_4B_Lab_Manual_2023/26%3A_Animal_Diversity/26.02%3A_ExerciseBegin your dissection by cutting along the midline of the carapace from the posterior edge to an area just behind the two eyes (see the photographs below). As you peel this piece of carapace away, it ...Begin your dissection by cutting along the midline of the carapace from the posterior edge to an area just behind the two eyes (see the photographs below). As you peel this piece of carapace away, it may be necessary to reach underneath with the point of a scissors or needle to brush away and detach any tissue from the interior of the animal that is attached to the carapace.
- https://bio.libretexts.org/Courses/Norco_College/OpenStax_Biology_2e_for_Norco_College/28%3A_Invertebrates/28.03%3A_Phylum_CnidariaPhylum Cnidaria includes animals that show radial or biradial symmetry and are diploblastic, that is, they develop from two embryonic layers. Nearly all (about 99 percent) cnidarians are marine specie...Phylum Cnidaria includes animals that show radial or biradial symmetry and are diploblastic, that is, they develop from two embryonic layers. Nearly all (about 99 percent) cnidarians are marine species. Cnidarians contain specialized cells known as cnidocytes (“stinging cells”) containing organelles called nematocysts (stingers). These cells are present around the mouth and tentacles, and serve to immobilize prey with toxins contained within the cells.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/General_Biology_1e_(OpenStax)/5%3A_Biological_Diversity/28%3A_Invertebrates/28.2%3A_Phylum_CnidariaPhylum Cnidaria includes animals that show radial or biradial symmetry and are diploblastic, that is, they develop from two embryonic layers. Nearly all (about 99 percent) cnidarians are marine specie...Phylum Cnidaria includes animals that show radial or biradial symmetry and are diploblastic, that is, they develop from two embryonic layers. Nearly all (about 99 percent) cnidarians are marine species. Cnidarians contain specialized cells known as cnidocytes (“stinging cells”) containing organelles called nematocysts (stingers). These cells are present around the mouth and tentacles, and serve to immobilize prey with toxins contained within the cells.
- https://bio.libretexts.org/Workbench/General_Biology_I_and_II/05%3A_Unit_V-_Biological_Diversity/5.07%3A_Invertebrates/5.7.03%3A_Phylum_CnidariaPhylum Cnidaria includes animals that show radial or biradial symmetry and are diploblastic, that is, they develop from two embryonic layers. Nearly all (about 99 percent) cnidarians are marine specie...Phylum Cnidaria includes animals that show radial or biradial symmetry and are diploblastic, that is, they develop from two embryonic layers. Nearly all (about 99 percent) cnidarians are marine species. Cnidarians contain specialized cells known as cnidocytes (“stinging cells”) containing organelles called nematocysts (stingers). These cells are present around the mouth and tentacles, and serve to immobilize prey with toxins contained within the cells.
- https://bio.libretexts.org/Workbench/BIOL-11B_Clovis_Community_College/09%3A_Porifera_and_Cnidaria/9.03%3A_Phylum_CnidariaOrganization of the nervous system in the motile medusa is more complex than that of the sessile polyp, with a nerve ring around the edge of the medusa bell that controls the action of the tentacles. ...Organization of the nervous system in the motile medusa is more complex than that of the sessile polyp, with a nerve ring around the edge of the medusa bell that controls the action of the tentacles. Despite the simplicity of the nervous system, it is remarkable that it coordinates the complicated movement of the tentacles, the drawing of captured prey to the mouth, the digestion of food, and the expulsion of waste.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/General_Biology_2e_(OpenStax)/05%3A_Unit_V-_Biological_Diversity/5.08%3A_Invertebrates/5.8.03%3A_Phylum_CnidariaPhylum Cnidaria includes animals that show radial or biradial symmetry and are diploblastic, that is, they develop from two embryonic layers. Nearly all (about 99 percent) cnidarians are marine specie...Phylum Cnidaria includes animals that show radial or biradial symmetry and are diploblastic, that is, they develop from two embryonic layers. Nearly all (about 99 percent) cnidarians are marine species. Cnidarians contain specialized cells known as cnidocytes (“stinging cells”) containing organelles called nematocysts (stingers). These cells are present around the mouth and tentacles, and serve to immobilize prey with toxins contained within the cells.
