OCE Test 2 IV
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| Which of the following statements shows the correct hierarchial ordering of taxonomic levels in terms of increasing specificity? | Kingdom, phylum, class, order, family, genus, species
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| Which of the following associations is incorrect | Kingdom Plantae
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| A small size is advantageous for marine organisms because it | Increases the ability to absorb nutrients, increases the ability of wastes to diffuse out of the organism, increases the surface area to volume ratio that in turn decreases density
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| Which of the following word pairs correctly link a descriptor with the way in which the organism lives in the ocean? | nekton-swim
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| An example of an organism that might be part of the epifauna is a | sea star
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| Planktonic organisms that spend part of their life in planktonic form, and the rest of their life as either benthos or nekton are called | meroplankton
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| Nekton are restricted to particular ocean areas by | Availabilty of food, differences in water pressure with depth, changes in salinity, temperature variations with latitude and depth
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| When compared to their warmer water counterparts, cold water plankton often | are larger in size
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| All the following are adaptive solutions employed by marine organism to prevent sinking except | decreasing cellular fat content
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| Plankton which are 2.0 to 0.2 nanometers in size are called | picoplankton
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| Euryhaline organsims | can survive wide salinity fluctuations
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| Organisms that cannot withstand large changes in temperature are referred t oas | stenothermal
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| When an organism has the same salt and water concentration as its environment, it is said to be | hypotonic
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| Osmotic pressure increases as the difference in salinity increases | difference in salinity increases
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| The majority of marine invertebrates are | isotonic with respect to their environment
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| Compared to freshwater fishes, marine fishes | tend to lose water by osmosis since their internal salt concentration is lower than that of sewater
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| An organism that tolerates a wide range of salinities is referred to as | euryhaline
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| The movement of a substance in solution from an area of higher concentration to an are of lower concentration across a selectively permeable memebrane is | diffusion
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| The color pattern in which marine organisms are light on the bottom and dark on the top of their bodies camouflaging them against the water air interface is | countershading
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| A common body shape that streamlines an organism in the marine environment is a flattened body that | tapers at the posterior end
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| The seasonal temperature range in the deep ocean is usually | negligible
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| Most marine species are found in a | benthic environment
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| Neritic marine environments would be found | associated with continental shelves
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| The euphotic zone is confined to the | epipelagic zone
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| Neritic environments are influenced by | Seasonal salinity variations, seasonal temperature fluctuations, tidal movements, wave energy
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| The sublittoral zone is the area | below the intertidal zone on the continental shelf
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| Zonation of benthic organisms includes all of the following except the | neritic zone
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| Organisms of the mesopelagic zone are characterized by | bioluminescence, large, sensitive eyes
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| Organisms with small, expandable bodies, extremely large mouths, and effiecient teeth are likely to be found in the | bathypelagic zone
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