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Give the importance of the
a) water cycle
b) nitrogen cycle
Step by step
Solved in 2 steps
- Describe the reservoirs and organisms involved in the carbon cycle and the nitrogen cycle.One of the lessons from a pyramid of production is that _____. A) eating grain-fed beef is an inefficient means of obtaining the energy trapped by photosynthesis B) the energy lost as heat or lost in cellular respiration is 10% of the available energy of each trophic level C) only one-half of the energy in one trophic level is passed on to the next level D) most of the energy from one trophic level is incorporated into the biomass of the next level E) production efficiency is highest for primary consumersNutrient cycling in aquatic vs terrestrial systems differ because: a) Aquatic systems store lower proportions of carbon and nutrients in detritus than terrestrial systems b) Water flow alters how nutrients move within streams, which affects nutrient retentiveness c) both d) neither
- Define the following terms:a. nitrogen fixationb. nitrogenasec. nitrogen assimilationd. amino acid poole. nitrogen cycleexplain the nitrogen cycle process27. Cultural eutrophication is a natural process. A) True B) False 28. In the carbon cycle _________________________. A) CO2 enters the ocean primarily by photosynthesis. B) photosynthesis always balances respiration. C) Carbon enters the food chain in the form of carbonic acid. D) CO2 in the ocean forms a weak acid.
- The Venus flytrap is a photosynthetic plant that can trap and eat small insects. The Venus flytrap is a:A) tertiary consumer. B) producer.C) both a producer and secondary consumer. D) both a producer and tertiary consumer.E) secondary consumer. Then expain why the choice is correct and why the others are incorrectDiscuss nitrogen cycleGive a) 3 examples of biotic componentsb) 7 examples of abiotic components
- Which of the following natural resources humans gain from plants is the LEAST renewable? a) Peat b) Coal c) Wood d) Fruit e) A and B are equally non-renewable2)The greastes effect that hmans have on the carbon cycle derives from A) the production of methane from domestic cattle B) all of these C) the production of CFCs D) runoff of fertilizers from agriclture E) the burning of fossil fuels56) To recycle nutrients, an ecosystem must have, at a minimum, A) producers. B) producers and decomposers. C) producers, primary consumers, and decomposers. D) producers, primary consumers, secondary consumers, and decomposers. E) producers, primary consumers, secondary consumers, top carnivores, and decomposers. 57) Which of the following is an example of bioremediation? A) bulldozing the land around an abandoned strip mine to combat erosion B) scraping a river bottom with a tool to remove contaminated sediments C) reconfiguring a river channel to increase the flow of water down a river D) using microorganisms to eat oil in marine waters after a tanker oil spill