Which of the following element/molecule used to capture energy for ecosystems, is widely available and is fixed by autotrophs? This chemical can be found as a gas, dissolved in water and as part of the bodies of all living things. O carbon nitrogen phosophus O water
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- Figure 22.19 Which of the following statements about the nitrogen cycle is false? Nitrogen fixing bacteria exist on the root nodules of legumes and in the soil. Denitrifying bacteria convert nitrates (NO3 ) into nitrogen gas (N2). Ammonification is the process by which ammonium ion (NH4+) is released from decomposing organic compounds. Nitrification is the process by which nitrites (NO2-) are converted to ammonium ion (NH4+).Figure 20.12 Which of the following statements about the nitrogen cycle is false? a. Ammonification converts organic nitrogenous matter from living organisms into ammonium (NH4+) . b. Denitrification by bacteria converts nitrates (NO3) to nitrogen gas (N2) . c. Nitrification by bacteria converts nitrates (NO3) to nitrites (NO2) . d. Nitrogen fixing bacteria convert nitrogen gas (N2) into organic compounds.You are observing an organism. It appears to extract energy stored in inorganic molecules like ammonia, nitrites and hydrogen sulfide; it uses carbon dioxide as its primary carbon source. What kind of organism is it? (Hint: think nutrition groups)
- An organism that gains energy from redox reactions involving inorganic and organic chemicals is a(n) autotroph. aerobe. lithotroph. phototroph. chemotroph.Biosphere Photosynthesis Chemosynthesis Cellular Respiration Equilibrium Food Chain Food Web Trophic Explain key terms so I can understand it. Short but I can understand and test is very important this is not a graded questionOrganisms that use/degrade carbon compounds from food containing organic carbon to extract energy are called __________, whereas organisms that utilize CO2 from the air and often obtain energy from the sun are called ______________. A. heterotrophs; lithotrophs B. heterotrophs; autotrophs C. autotrophs; heterotrophs D. lithotrophs; autotrophs E. autotrophs; lithotrophs
- Which of the following organism classification is based on free energy sources? A. lithotrophs B. organotrophs C. chemotrophs D. autotrophs A, C, D A, B, C, D A, B, C B, C, DBiological Oxygen Demand (BOD) is a measure of? How much oxygen needed is needed for growth of aerobic bacteria The extent to which rivers or lakes are polluted with inorganic industrial waste compounds How much oxygen is needed for survival of aerobic bacteria The extent to which rivers or lakes are polluted with organic waste compoundsAll organisms can convert __________ to organic nitrogen (nitrogen bound to a carbon), but few organisms can make this same molecule from __________. ANSWER NO3-; NH3 N2; NO3- N2,; NH3 NH3; N2
- What form of energy is required for water to evaporate from the ocean to the atmosphereThe cyanobacteria in Lake Erie would best be described as .a. decomposersb. tertiary consumersc. primary producersd. heterotrophse. secondary consumersWe have seen that energy is essential for life on earth. All organisms need energy to maintain their cellular processes. There are two basic ways of generating energy de novo, at the base of food webs. Describe the two primary ways that autotrophic organisms generate energy, including the original source of energy and the primary organisms that carry out each process.