Download Invert SG

Name ____________________________________________________ Group of Organism Key Ideas/Terms Taxonomy and Invertebrate Study Guide Taxonomy Taxonomy. Order of levels of classification (LDKPCOFGS). Characteristics of the three DOMAINS. Characteristics of the four KINGDOMS in DOMAIN: EUKARYA. 2 Rules for writing Scientific Names. Be able to look at a cladogram and identify which organisms are MOST and LEAST related and explain why. Invertebrates Number of invertebrate species compared to number of vertebrate species on Earth. Benefits of NOT having a backbone. Why are largest invertebrates found in the ocean? Reproductive strategy of most invertebrates. Intelligence/brain power of invertebrates For each group of invertebrates know the following things: 1. Classification 2. Examples 3. Body Symmetry 4. Feeding Behavior and Structures 5. Unique Structures or Behaviors 6. Evolutionary Leaps Porifera Example: Sponges. First animal on Earth. How it eats. Job of collar cells, amoebocytes, and spicules. Body symmetry. Cnidaria Examples: jellyfish, anemones, corals. Polyp vs. medusa. Nematocysts and how they function. How cnidarians eat. Body symmetry. What does sessile mean? What does free-­‐swimming mean? Mollusks: Cephalopods Examples: Octopods, squid, cuttlefish. Adaptations: ability to camouflage, large brain, fast swimming/jet propulsion, ink. Body symmetry. Feeding behavior. Intelligence. Mantle, foot, shell. Mollusks: Bivalves Example: Clams. Feeding style. Adaptations: 2 external shells, muscular foot, adductor muscle. Body symmetry. Sessile. Mantle, foot, shell. Mollusks: Gastropods Examples: snails and slugs. Adaptations: 1 muscular foot on bottom, eye stalks, large, single piece, external shell. Body symmetry. Feeding behaviors. Mantle, foot, shell. Echinodermata Examples: Sea Stars, Sea Urchins, Sand Dollars, Brittle Stars, and Sea Cucumbers. Major features of echinoderms: water vascular system, tube feet, and spiny skin. Sea Stars vs. Sea Urchins body structures (basic). Body symmetry. How each type (sea star, sea urchin, etc.) eats. Arthropods: Crustaceans Examples: crabs, lobsters, shrimp, barnacles. Adaptations: jointed appendages, exoskeleton, segmented body, and specialized appendages. What classifies it as an arthropod? What classifies it as a crustacean? Molting. Feeding behaviors. Practice Questions TAXONOMY 1. What is the order of classification from BROADEST to MOST SPECIFIC? 2. What are the 3 Domains of life? 3. What are the 4 Kingdoms in the Domain Eukarya? What are the characteristics of these kingdoms? 4. What makes up a scientific name? What are the rules to writing a scientific name correctly? 5. What does this sentence mean: “As you go from a BROAD classification level down to a MORE SPECIFIC classification level, the number of species decreases at each level, but the number of characteristics that the species have in common increases at each level.” INVERTEBRATE VIDEO 1. Why can sea stars and crabs regrow their limbs, but we cannot? 2. Why do we only see big invertebrates in the ocean? 3. What does the nervous system of MOST invertebrates look like? 4. What is the exception to the “invertebrate-­‐no-­‐brain” rule? 5. What is the invertebrate reproductive strategy? MARINE INVERTEBRATES 1. What structures do all mollusks have in common? 2. Make groupings of all of the organisms based on classification, body symmetry, and feeding behavior and structures. 3. Describe the difference between suspension and filter feeders. 4. What structures do all echinoderms have in common? 5. What adaptations do crustaceans have? 6. What are the types of Cnidarians? Which are polyps and which are medusas? How do you know? 7. Describe filter feeding in sponges and bivalves. 8. Describe suspension feeding in cnidarians. 9. What do all cnidarians have in common? 10. What is the purpose of “sensory tube feet” in echinoderms? 11. How do bivalves bury themselves? 12. How do nematocysts work? 13. Describe the nervous system of a cephalopod. How is it different from other invertebrates? 14. Define these names: Echinoderm, Gastropod, Porifera, Cnidaria, Cephalopod, Bivalve, Arthropoda. 15. If you were to happen upon a creature on the beach, what characteristics would you look for to tell you that it was an Arthropod? How would you know whether it was a Crustacean?