OCE1001 Test 4 Study Guide Of the following statements about photosynthesis which one is true Selected Answer Water and carbon dioxide are converted to sugar and oxygen gas It might seem a bit unusual that the richest concentration of marine life is 1 in the very margins of the oceans where conditions are the least stable and 2 in colder water which seems less conducive to a good life What factor s provide an explanation of these observations Selected Answer Cold water holds more dissolved carbon dioxide than warm water and nutrient avail ability is greater in the margins of the oceans Of the following ocean locations where would the level of nutrients be highest Selected Answer near continents Chlorophyll is in color a group of marine organisms that contains chlorophyll are called Chapter 13 Question 1 Question 2 Answer Question 3 Answer Question 4 Answer Question 5 Answer Question 6 Answer Question 7 Question 8 Answer Selected Answer green phytoplankton Kelp belongs to which of the following types of organisms Selected Answer macroscopic algae Dinoflagellates are important examples of that are often associated with Selected Answer phytoplankton red tides Late one night as you are flipping channels on TV you come across the Alfred Hitchcock thriller The Birds You know that this movie showing unusual bird behavior was inspired by an actual event involving birds that pecked people because the birds were affected by Answer Selected Answer domoic acid Photosynthesis in tropical waters is limited by which of the following factors Selected Answer availability of nutrients Question 9 Answer Question 10 Answer Question 11 Answer Question 12 Answer In middle latitude waters during the winter the supply of sunlight is and the supply of nu trients is Selected Answer minimized maximized In middle latitude waters productivity of marine algae during the spring because Selected Answer increases the amount of sunlight is increasing In middle latitude waters nutrients during the spring because Selected Answer decrease they are getting used up by phytoplankton Photosynthetic productivity is the result of action by herbivores The clear indigo blue color of tropical waters is due to high biologic productivity The productivity values of algae beds and coral reefs average about the same as those of tropical rain forests on land When a population of organisms at a low trophic feeding level becomes depleted organisms that are at the top of a food chain are more vulnerable to ecological collapse than those that are at the top of a food web Selected Answer False Question 13 Answer Selected Answer False Question 14 Answer Selected Answer True Question 15 Answer Selected Answer True Question 16 Why do the majority of the ocean s organisms live within the ocean s surface waters Selected Answer Phytoplankton need to be in the sunlit zone and they are the base of the entire food web Except for Trophic Level 1 on average about of the mass that is taken in at one trophic level is passed on to the next In marine food webs individual members of a feeding population are generally in size and numerous than their prey Answer Question 17 Answer Selected Answer 10 Question 18 Answer Selected Answer larger less Question 19 Answer Selected Answer non tropical shelves Which ecosystem produces the largest percentage of the world s marine fishery Question 20 Answer Question 1 Answer Phosphates Iron Nitrates Question 2 Answer A fishery s maximum sustainable yield MSY is defined as Selected Answer the maximum fishery biomass that can be removed yearly and still be sustained by the fishery ecosystem Understanding the Concepts Of the following nutrients which is are used in photosynthetic primary productivity by phytoplankton Selected Answers Silica Of the following types of organisms which are examples of microscopic algae Selected Answers Dinoflagellates Coccolithophores Diatoms Question 3 Answer Question 4 Answer Of the following statements about feeding strategies which is are true Selected Answers Deposit feeders include worms that ingest sediment that is coated with organic mat ter Suspension feeding involves filtering plankton from seawater Suspension feeding is the same thing as filter feeding Carnivorous feeding involves either passive or active predation Carnivorous feeding involves organisms directly capturing and eating other animals Of the following statements about oceanic productivity in polar regions which is are true Selected Answers 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 Question 5 Question 6 Answer Question 7 Of the following locations which is are exceptions to the general rule that productivity is steady and low in tropical regions Answer Selected Answers coral reefs equatorial upwelling coastal upwelling Of the following statements about oceanic productivity which is are true Selected Answers 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 In tropical oceans productivity is limited year round by the lack of nutrients Of the following locations where would you expect to find the HIGHEST annual oceanic productivity Select only one answer Selected Answer in middle latitude waters along a continental margin Of the following types of organisms which one is considered to be LOWEST in a marine food web Se lect only one answer Selected Answer photosynthetic bacteria Which of the following are examples of consumers that exist in marine ecosystems Selected Answers Carnivores Answer Question 8 Answer Question 9 Answer Omnivores Herbivores Bacteriovores Question 10 Answer Of the following statements about marine fisheries which is are true Selected Answers Fishing practices have removed 90 of large marine predatory fish species In U S waters 80 of commercial marine fish stocks are fully exploited or overfished A recent study indicates that if fishing practices continue marine fish stocks will be depleted by 2048 Visualizing Oceanography Question 1 6 out of 6 points 1 1 1 1 On the image below match the following types of radiation with the letters indicating their positions on the spectrum of wavelengths 2 3 Answer X rays B B Infrared D D Gamma rays E E AM radio C C F F Ultraviolet A A Microwaves and radar
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