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Oceanography
Chap 15
| Question | Answer |
|---|---|
| Animal | A multicellular organism unable to synthesize its own food and often capable of movement |
| Annelid | The phylum of animals to which segmented worms belong |
| Anthropoda | The phylum of animals that includes shrimp, lobsters, krill, barnacles, and insects |
| Baleen | The interleavedm hard, fibrous, hornlike filter with the nouth of the baleen whale |
| Bilateral symmetry | Body structure having left and right sides that are approximate mirror images of each other; ie humans and crabs |
| Bivalvia | The class of the phylum Mollusca that includes clams, oysters, and mussels |
| Carnivora | The order of mammals that includes seals, sea lions, walruses, and sea otters |
| Cartilage | A tough, elastic tissue that stiffens or supports |
| Cephalopoda | The class of the phylum Mollusca that includes squid, octopuses, and nautiluses |
| Cetacea | The order of mammals that includes porpoises, dolphins, and whales |
| Chitin | A complex nitrogen-rich carbohydrate from which parts of arthropod exoskeletons are constructed |
| Chondrichthyes | The class of fishes with cartilaginous skeletons; the sharks, skates, rays and chimaeras |
| Chordata | The phylum of animals to which tunicates, Amphioxus, fishes, amphibians,reptiles, birds, and mammals belong |
| Cnidaria | The phylum of animals to which corals, jellyfish, and sea anemones belong |
| Cnidoblast | Type of cell found in members of the phylum Cnidaria that contains a stinging capsule. the threads that evert from the capsules assist in capturing prey and repelling aggressors |
| Crustacea | The class of phylum Arthropoda to which lobsters, shrimp, crabs, barnacles, and copepods belong |
| Drag | The resistance to movement of an organism induced by the fluid through which it swims |
| Echindermata | The phylum of exclusively marine animals to which sea stars, brittle stars, sea urchins, and sea cucumbers belong |
| Echolocation | The use of reflected sound to detect environmental objects. Cetaceans use echolocation to detect prey and avoid abstacles |
| Ectotherm | An organism incapable of generating and maintaining steady internal temperature from metabolic heat and therefore whos internal body temp. is approximately the same as that of the surrounding environment; a cold blooded organism |
| Exoskeleton | A strong, lightweight, form-fitted external covering and support common to animals of the phylum Arthropoda. The exoskeleton is made partly of chitin and maybe strengthened by calcium carbonate |
| Fissipedia | The carnivoran suborder that includes sea otters |
| Gas exchange | Simultaneous passage, through a semipermeable membrane, of oxygen into an animal and carbon dioxide out of it |
| Gastropoda | The class of phylum Mollusca that includes snails and sea slugs |
| Gill membranes | The thin boundary of living cells separating blood from water in a fish's(or other aquatic animal's gills) |
| Hermatypic | Describing coral species possessing sybiotic zoo-xanthellae within their tissues and capable of secreting calcium carbonate at a rate suitable for reef production |
| Holothuroidea | The class of the phylum Echinodermata to which sea cucumbers belong |
| Invertebrate | Animal lacking a backbone |
| Mammalia | The class of mammals |
| Medusa | Free swimming body form of many members of the phylum Cnidaria |
| Metamerism | Segmentation; repeating body parts |
| Mollusca | The phyllum of animalsthat includes chitons, snails, clams, and octopuses |
| Molt | To shed an external covering |
| Mysticeti | The suborder of baleen whales |
| Nematoda | The phyllum of animals to which roundworms belong |
| Notochord | Stiffening structure found at some time in the life cycle of all members f the phylum Chordata |
| Odontoceti | The suborder of toothed whales |
| Osteichtheys | The class of fishes with bony skeletons |
| Oxygen revolution | The time span, from about 2 billion to 400 million years ago, during which photosynthetic autotrophs changed the composition of Earth's atmosphere to its current oxygen-rich mixture |
| Phylum | One of the major groups of the animal kingdom whose members share a similar body plan, level of complexity, and evolutionary history |
| Pinnipedia | The carnivoran suborder that contains the seals sea lions and walruses |
| Platyhelminthes | The phylum of animals to which flatworms belong |
| Polychaeta | |
| Polychaeta | The largest and most diverse class of phylum Annelida. Nearly all polychaetes are marine. |
| Polyp | One of two bosy forms of Cnidaria. Polyps are cup shaped and possess rings of tentacles coral animals are polyps. |
| Porifera | The phylum of animals to which sponges belong |
| Radial Symmetry | Body structure in which the body parts radiate from a central axis like spokes from a wheel. An example is a sea star |
| Schooling | Tendency of small fish of a single species, size, and age to mass in groups. The school moves as a unit, which confuses predators and reduces the effort spent searching for mates. |
| Sirenia | the order of mamals that includes manatees, dungongs, and the extinct sea cows. |
| Suspension feeder | An animal that feeds by straining or otherwise collecting plankton and tiny food particles from the surrounding water |
| Teleostei | The osteichthyan order that contains the cod, tuna, halibut, perch, and other species of bony fish |
| Tunicate | A type of suspension feeding invertebrate chordate |
| Verebrate | A chordate with a segmented backbone |
| Water-vascular system | System of water-filled tubes and canals found in some representativs of the phylum Echinodermata and used foe movement, defense and feeding |
| Zooxanthellae | Unicellular dinoflagellates that are symbiotic with coral and that produce the relatively high pH and some of the enzymes essential for rapid calcium-carbonate deposition in coral reefs |
Created by:
lenelcorrea
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