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| 67042575 | Define: Nematocysts | An adaptation of the Cnidaria for feeding and defense. it functions like miniature harpoons. it can pierce a shell and releases toxins. | 0 | |
| 67042576 | Corals | Are a Cnidaria. live in large colonies, and secrete calcium carbonate. when old polyps die, new ones build on top. Corals get much of their energy from "zooxanthellae" - symbiotic autotrophic protists. | 1 | |
| 67042577 | Reproduction of cnideria | Asexual reproduction: budding off from polyps. Sexual reproduction: fertizlied eggs give rise to mobile, planktonic forms. | 2 | |
| 67042578 | Protostomes consist of what phyla? | Lophotrocozoans - [which consist of platyhelminthes, annelida, mollusca] | 3 | |
| 67044571 | Platyhelminthes Body Plan | Acoelomate. Lack circulatory, respiratory system, absorb O2 thru body wall. Slow movement. | 4 | |
| 67044572 | Platyhelminthes Feeding | Some free-living, many parasites. Some of the parasites with complex life cycles several different forms and more than one host. | 5 | |
| 67044573 | Platyhelminthes reproduction | Some asexual, some sexual, most hermaphrodites. | 6 | |
| 67044574 | Annelida examples! | Earthworms, polychaete worms, leeches | 7 | |
| 67044575 | Annelida body plan | True Coelom, segmentation of body and coelom. Head with brain, respiration across body wall. | 8 | |
| 67044576 | Annelida Feeding | Earthworms - decomposer - eats dead material, Polychate worms are parasites, scavengers, Leeches - blood. (mostly) | 9 | |
| 67044577 | Mollusca Diversity | ~110,000 species - Octopus, nudbranches - marine sea slugs. | 10 | |
| 67044578 | Key Adaptations of Mollusca | The Mantle and the Radulla | 11 | |
| 67044579 | The Mantle | Sheet of skin. secretes shell forms gills for gas exchange, and in cephalopods forms muscular cavity that forcibly ejects water for locomotion. | 12 | |
| 67044580 | the Radulla | a hardened tongue. probably evolved for scraping algae off rocks, and in different species has been modified for punturing, slicing, and manipulating food. | 13 | |
| 67044581 | Feeding niches of Mollusca | Mostly grazers or predacious | 14 | |
| 67044582 | Cephalopods are masters of disguise | Highly developed nervous system, big brains, Chromatophores- allow sudden color changes for disguise, confusion and courtship. Cuttlefish with electric skin. | 15 | |
| 67044583 | What composes the phyla Ecdysozoans | Nematoda and Arthropoda | 16 | |
| 67044584 | Body plan of nematoda | roundworms - very simple, a tube w/in a tube Have a pseudocoelom for body cavity. One way digestive system: mouth and anus | 17 | |
| 67044585 | Feeding of nematoda | Many free living decomposers and parasites of almost everything. | 18 |
