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18 Cards in this Set
- Front
- Back
thermohaline
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ocean circulation that is driven by the difference in water density, due to variation in water temperature and salinity, rather than by winds or tides
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Great Ocean Conveyor
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a global circulatory pattern in which water cycles throughout the ocean basin
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main thermocline
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the layer between about 200 and 1000 m were the temperature drops rapidly as depth increases
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midwater
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animals that can survive in the mesopelagic zone
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cephalopods
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squid, octopus, and related molluscs that use sucker-bearing arms to capture prey, and lacking of shell
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deep scattering layer
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type of bottom layer that gives a soft, diffuse echo that makes a shadowy trace on sonar plots
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tubular eye
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specialized eye of many midwater that allow acute upwards or downwards vision
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oxygen minimum zone
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a layer of water at a depth approximately 500 m where oxygen is depleted
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bathypelagic zone
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water column 1000 to 4000 m in depth
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abyssopelagic zone
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water column 4000 to 6000 m in depth
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hadopelagic
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water column 6000 to 11,000 m in depth
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hermaphrodite
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individuals with both male and female gonads
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enzymes
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proteins that speed up and control chemical reactions in organisms
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metabolism
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the vast set of chemical reactions that sustain life
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deep-sea gigantism
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phenomena where deep sea animals grow much larger than those in shallower waters to increase locomotion and energy storage
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chemosynthetic prokaryotes
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autotrophic bacteria and archaea that use energy contained in inorganic rather than sunlight to make organic matter
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hydrothermal vents
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undersea hot springs associated with mid-ocean ridges
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cold seep
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areas mostly along the continental margins or in sediment-rich basins where hydrogen sulfide and methane produced by the decay of orgsnic matter seep out of the sea floor
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