Question 6 40 out of 40 points match the answer to

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Question 6 40 out of 40 points Match the answer to the question. Question Correct Match Selected Match ________ is the process by which plants absorb a portion of their nutrients from senescing tissues to be stored and used for the production of new tissues. J. retranslocatio n J. retranslocatio n The breakdown of chemical bonds that were formed during the construction of plant and animal tissues is called ________. L. decompositio n L. decompositio n The release of organically bound nutrients into an inorganic form is called ________. B. mineralization B. mineralization
The introduction of high levels of nutrients into a body of water is called ________. R. eutrophicatio n R. eutrophicatio n Precipitation brings appreciable quantities of nutrients into ecosystems that are collectively called ________. G. wetfall G. wetfall Large quantities of nutrients are bound tightly in ________ structure; they are not readily available until released by the activities of decomposers. M. organic M. organic Some nutrients are ________ from the soil and carried out of ecosystems by underground water flow to streams. N. leached N. leached The element ________ is a basic constituent of all organic compounds and is involved in the fixation of energy by photosynthesis. P. carbon P. carbon The difference between the rate of carbon uptake in photosynthesis and the rate of carbon loss due to autotrophic and heterotrophic respiration is the net ________ productivity. D. ecosystem D. ecosystem Nitrogen is generally available to plants in only two forms: ammonium and ________. C. nitrate C. nitrate Biological nitrogen fixation is accomplished by symbiotic ________ living in mutualistic association with plants. O. bacteria O. bacteria Nitrogen can be returned to the atmosphere when certain bacteria convert it from nitrate into nitrogen gas, which is a process called ________. F. denitrification F. denitrification

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