Chapter 13 a False cellular respiration a False a False In primary production 4 5 1 The products of photosynthesis are carbon dioxide CO2 and water H2O 2 Compensation depth is the depth in the ocean where the photosynthetic rate exceeds the rate of 3 Tropical open ocean waters have the highest rate of primary productivity in the world s oceans a There is a net gain in organic carbon by organisms In general the rate at which energy is stored by organisms through the formation of organic matter is called a Primary productivity 6 The depth at which the cellular respiration rate equals the photosynthetic rate is referred to as a Compensation depth for photosynthesis 7 The color of light most readily absorbed by water is the a Red 8 Mass mortality events of marine mammals and birds may occur after ingesting prey items that contain algal toxins What organism that can cause harmful algal blooms should humans be concerned about if animals in the area are having seizures and exhibiting erratic drunken like behavior a Pseudo nitzschia because it causes amnesic shellfish poisoning 9 The group of marine macroscopic algae with the highest abundance and greatest geographic distribution belong to the Division Rhodophyta 10 Diatoms are classified as members of the Division Chlorophyta 11 Diatoms important producers in the epipelagic open ocean are members of the Division 12 Important marine autotrophs that have silica incorporated into their cell walls are a True a False a Chrysophyta a Diatoms 13 Examine the five words and or phrases and determine the relationship among the majority of words phrases Please identify the word and or phrase that does NOT fit the pattern Enter only the letter of the answer caps no period and not the full entry in the field below 14 In dead zones resulting from eutrophication animal life is absent due to the lack of 15 Of the following types of organisms which are examples of microscopic algae a Spartina marsh grass a Oxygen a Diatoms b Dinoflagellates c Coccolithophores 16 Primary productivity in temperate marine systems is limited solely by the amount of available solar radiation a False a False a 90 17 Equatorial upwelling decreases primary productivity in tropical waters 18 The percentage of biomass regularly decomposed within the euphotic zone is about 19 The relative productivity in the world s oceans from most productive to least productive is temperate waters polar waters tropical waters 20 Productivity in polar oceans is light limited 21 Although primary productivity in tropical areas is generally low which of the following tropical locations have unusually high primary productivity rates a All the above tropical areas have relatively high primary productivity 22 In temperate oceans of the northern hemisphere during the summer months a nutrient concentrations are low solar input is high and dissolved oxygen decreases 23 Summer productivity in temperate waters typically is hampered by a a strong thermocline 24 Of the following statements about oceanic productivity in polar regions which is are true In polar oceans productivity is limited by the lack of sunlight in the winter In polar oceans there is incredibly high productivity in the summertime In polar oceans nutrient concentrations are usually adequate and do NOT limit productivity 25 Of the following statements about oceanic productivity which is are true In tropical oceans productivity is limited year round by the lack of nutrients In middle latitude oceans the spring bloom is limited by the lack of nutrients In middle latitude oceans the fall bloom is limited by the lack of sunlight 26 Which of the following statements correctly explain why biological productivity in the tropical ocean is so meager when compared to biological productivity on land in tropical environments a The sunlight penetrates deep into the tropical ocean warming the surface waters and b The permanent thermocline presents a barrier that keeps nutrients in deeper water from creating stratification of water masses mixing with surface waters 27 Review the graph which conveys data about biological productivity in polar regions of the Northern Hemisphere Can you label the curves correctly for which relates to phytoplankton and which relates to zooplankton Label other features on the graph a a a b c a b c a Key Red Line Line for Phytoplankton b Key Green Line Line for zooplankton c Approximately November February Continuous Darkness d Approximately March October Continuous Sunlight e Graphs Red Line Diatom population peaks f Graphs Green Line Copepod population peaks 28 Consider what would happen if the euphotic zone became cloudy from sediment rich runoff from a storm near the coast Read the sentences below and fill in the blanks to make them complete and correct a A cloudy euphotic zone would affect Phytoplankton by restricting their ability to obtain b As a result of this storm zooplankton could suffer from a reduced population of c Because phytoplankton are considered producers animals that feed on them would sunlight for photosynthesis phytoplankton to feed on suffer when their productivity is low thick clouds of sediment in the water d Nonphotosynthetic organisms in the aphotic zone will not likely be surrounded by the e Productivity in this area would become low f The euphotic zone account for vertical space and distance in the ocean water 29 In the biogeochemical cycling of matter in marine ecosystems which process re mineralizes 30 Energy flow in photosynthetic marine ecosystems is unidirectional in contrast to nutrients which nutrients back into the dissolved state a bacterial decomposition cycle through ecosystems a True 31 Energy flow in an ecosystem is a Unidirectional 32 If 10 000 kilocalories kcal of energy were contained in the primary producers trophic level 1 on average how many kcal of energy would you expect to be transferred to second order consumers trophic level 3 a 100 kcal 33 Examine the five words and or phrases and determine the relationship among the majority of words phrases Please identify the word and or phrase that does NOT fit the pattern Enter only the letter of the answer caps no period and not the full entry in the field below a D biogeochemical cycle 34 Amphipods are a deposit feeders 35 Match the term or phrase with its best descriptor aquaculture a farming of commercial fish and shellfish 36 Match the term or phrase with its best descriptor maximum sustainable yield a maximum catch without reducing
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