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OCE Test 2 IV
| Question | Answer |
|---|---|
| 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 |
| Which of the following associations is incorrect | Kingdom Plantae |
| 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 |
| Which of the following word pairs correctly link a descriptor with the way in which the organism lives in the ocean? | nekton-swim |
| An example of an organism that might be part of the epifauna is a | sea star |
| 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 |
| 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 |
| When compared to their warmer water counterparts, cold water plankton often | are larger in size |
| All the following are adaptive solutions employed by marine organism to prevent sinking except | decreasing cellular fat content |
| Plankton which are 2.0 to 0.2 nanometers in size are called | picoplankton |
| Euryhaline organsims | can survive wide salinity fluctuations |
| Organisms that cannot withstand large changes in temperature are referred t oas | stenothermal |
| When an organism has the same salt and water concentration as its environment, it is said to be | hypotonic |
| Osmotic pressure increases as the difference in salinity increases | difference in salinity increases |
| The majority of marine invertebrates are | isotonic with respect to their environment |
| Compared to freshwater fishes, marine fishes | tend to lose water by osmosis since their internal salt concentration is lower than that of sewater |
| An organism that tolerates a wide range of salinities is referred to as | euryhaline |
| 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 |
| 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 |
| A common body shape that streamlines an organism in the marine environment is a flattened body that | tapers at the posterior end |
| The seasonal temperature range in the deep ocean is usually | negligible |
| Most marine species are found in a | benthic environment |
| Neritic marine environments would be found | associated with continental shelves |
| The euphotic zone is confined to the | epipelagic zone |
| Neritic environments are influenced by | Seasonal salinity variations, seasonal temperature fluctuations, tidal movements, wave energy |
| The sublittoral zone is the area | below the intertidal zone on the continental shelf |
| Zonation of benthic organisms includes all of the following except the | neritic zone |
| Organisms of the mesopelagic zone are characterized by | bioluminescence, large, sensitive eyes |
| Organisms with small, expandable bodies, extremely large mouths, and effiecient teeth are likely to be found in the | bathypelagic zone |
Created by:
nmr09c