OCE1001 Exam 3 Thursday April 3rd 2013 Hey guys These are all the iClicker questions we have done in class since spring break I know it s less than we usually have but that s because we ve only had 4 classes regarding the material for this exam Below I will attach some extra questions for more info Good luck What are Eukarya Archaea and Bacteria The domains of life In photosynthesis what three things must come together to produce sugar and oxygen Light water and carbon dioxide What is chemosynthesis The biological process that uses chemicals such as hydrogen sulfide to combine water carbon dioxide and oxygen into carbohydrates What is an autotrophic organism An organism that can make organic matter through photosynthesis or chemosynthesis Organisms that float and cannot swim against a current are called what How does light change with depth As depth increases light decreases exponentially Which color of the visible spectrum can penetrate he deepest in the Plankton ocean Blue Some organisms can generate light by themselves this ability is called what Bioluminescence A poikilotherm is an organism that does what Cannot regulate their body temperature What is the difference between a homeotherm and an endotherm Both can regulate their body temperature but homeotherms are better at it What is osmosis Diffusion of water across a membrane What strategies or methods help an organism float Becoming smaller to increase surface area to volume ratio gas filled chambers AND oil storage The following pattern describes the concentration of what In the ocean concentrations are high due to respiration reaching a minimum zone after which concentrations increase again Oxygen What is the name of the zone that includes coastal waters Neritic The ocean environment zone having low temperature no light and great pressure is the zone Abyssal In the ocean free floating organisms are called what Phytoplankton Plankton are organisms that float Why is a copepod which can swim and propel itself through the water classified as plankton Because of its small size it cannot swim very fast or very far so its location is determined by currents What organisms is responsible for the vast majority of Harmful Algal Blooms Dinoflagellates What is meroplankton Organisms that only spread part of their life cycle as plankton Which of the following are phytoplankton Diatoms and Dinoflagellates What is the name of the processes that convert dissolved organic matter into biomass that can be consumed by other organisms The microbial loop What is the difference between gross productivity and net productivity Gross productivity is all the organic carbon generated by photosynthesizers while Net productivity is the organic carbon leftover after subtracting the organic carbon used in their cellular respiration In the dark light bottle experiment one of the following is measured in the dark bottle Respiration What processes does phytoplankton biomass depend on Growth and reproduction AND death and grazing When referring to phytoplankton biomass what is top down control Grazing by heterotrophic consumers controls the amount of phytoplankton biomass that can accumulate What is the term used to describe a single sequence of organisms through which energy is transferred Food chain What is the trophic efficiency The percent of energy passed to the next higher trophic level from the trophic level below What is a food web The feeding relationships between all organisms in an ecosystem What is a trophic pyramid At successively higher trophic levels the number of individuals and the total biomass decrease The depth at which the rate of photosynthesis equals the rate of respiration is called what Compensation depth To which group do the tuna salmon and swordfish belong Nekton 3 What percentage of birds are marine species Schooling behavior is thought to offer fish several advantages Which of the following is NOT an advantage of schooling Some predators can take advantage of the high density of prey found in a school What is the primary factor that limits life in the deep ocean Limited food supply Which of the following reptiles are part of the nekton Marine Iguana Sea snake Gavial and green turtle Here is the older stuff as promised Sorry if it is redundant but there are a few different ones that may be worth looking into I tried to delete a few of the questions I immediately realized were doubles but I am sure I missed more What marine organism represents the vast majority of the ocean s biomass Plankton represents the vast majority of the oceans biomass Plankton are organisms that float Why is a copepod which can swim and propel itself through the water classified as plankton Because of its small size it can t swim fast or far so it s location is determined by current Organisms that can photosynthesize and produce their own food are called what Autotrophic Organisms that only spend part of their life cycle as plankton are referred to as what Meroplankton What are nektobenthos Organisms that live on the bottom but swim or crawl through water What is the primary factor that limits life on the deep ocean floor Sparse Food Supply Of Earth s total number of species why are the fewest in the marine pelagic realm Uniform conditions in the pelagic realm make fewer specialized environments for organism adaptation as different species Why is the surface area to volume ratio important for phytoplankton A larger ratio provides higher resistance to sinking and less energy used to stay afloat Why do most fish and marine mammals have the same torpedo like streamlined shape The shape minimizes energy expended to move through water Most fresh water fish are hypertonic meaning their body cells contain more salt than the surrounding water Since osmosis should push water into their cells why don t they explode They release more water by excreting highly diluted urine What is the primary difference between pelagic environment zones below the photic zone Increasing pressure with increasing depth What are the reasons the ocean has a smaller daily seasonal and annual temperature range than that experienced on land Water has a greater heat capacity than land so it doesn t heat as fast warming of the ocean is reduced by evaporation which removes excess heat radiation from the sun can also penetrate deep into the water distributing its energy through a very large mass What is the definition of eurythermal Organisms that can tolerate large changes in temperature
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