Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 38.4, Problem 3MC
Summary Introduction
To determine:
The unique roles that bacteria and archaea play in the nitrogen cycle.
Concept Introduction:
Organisms and their environment interact with one another for recycling of elements such as water, carbon, phosphorous and nitrogen, it is termed as biogeochemical cycles. Nitrogen is an element which is present in multiple reservoirs. Nitrogen is present in the atmosphere as N2 or oxide. It can be dissolved in the ocean and the soil contains nitrogen ions. Nitrogen cycle is a process of nitrogen fixation in which conversion of N2 into ammonium ions (NH4+) is performed by many archaea and bacteria.
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Chapter 38 Solutions
Biology: Concepts and Investigations
Ch. 38.1 - Distinguish among communities, ecosystems, and...Ch. 38.1 - Prob. 2MCCh. 38.1 - Distinguish between habitat and niche.Ch. 38.1 - Prob. 4MCCh. 38.1 - Prob. 5MCCh. 38.1 - Prob. 6MCCh. 38.1 - Prob. 7MCCh. 38.2 - Prob. 1MCCh. 38.2 - Prob. 2MCCh. 38.2 - Prob. 3MC
Ch. 38.2 - Prob. 4MCCh. 38.3 - Identify the trophic levels of a food chain.Ch. 38.3 - Prob. 2MCCh. 38.3 - Prob. 3MCCh. 38.3 - Prob. 4MCCh. 38.3 - Prob. 5MCCh. 38.3 - Prob. 6MCCh. 38.4 - Prob. 1MCCh. 38.4 - Prob. 2MCCh. 38.4 - Prob. 3MCCh. 38.4 - Prob. 4MCCh. 38.4 - Prob. 5MCCh. 38.5 - Prob. 1MCCh. 38.5 - Prob. 2MCCh. 38 - Prob. 1MCQCh. 38 - Cyanobacteria are photosynthetic bacteria that...Ch. 38 - Prob. 3MCQCh. 38 - Prob. 4MCQCh. 38 - A large tree falls over in an old-growth forest,...Ch. 38 - Prob. 6MCQCh. 38 - In a prairie, which trophic level should have the...Ch. 38 - Prob. 8MCQCh. 38 - Prob. 9MCQCh. 38 - Prob. 1WIOCh. 38 - Prob. 2WIOCh. 38 - Prob. 3WIOCh. 38 - Prob. 4WIOCh. 38 - Prob. 5WIOCh. 38 - Prob. 6WIOCh. 38 - Prob. 7WIOCh. 38 - Prob. 8WIOCh. 38 - Prob. 9WIOCh. 38 - 1. Review the definitions of ecology, populations,...Ch. 38 - Prob. 2PIT
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- Which process is a source of phosphorus in ecosystems? A) Erosion of rock by water B) Fixation by bacteria in soil C) Respiration by Plants and Animals D) Photosynthesis by plants and algae.arrow_forwardQuestion 7 The carbon cycle differs from the nitrogen cycle in that ______________________. A) the residence time of carbon is longer. B) the nitrogen cycle requires specialized organisms. C) there is a large atmospheric pool of carbon. D) the carbon cycle is in equilibrium. Question 8 The phosphorus cycle differs from the nitrogen cycle in that ________________. A) there is a large sedimentary pool of nitrogen. B) the phosphorus cycle has a short residence time. C) there is a large sedimentary pool of phosphorus. D) there is no limiting step in the phosphorus cycle.arrow_forwardNitrogen is the most common element in the air. Why do bacteria play a role in the nitrogen cycle?arrow_forward
- What are the key ecological roles of nitrifying bacteria in the nitrogen cycle?arrow_forwardGive examples of free-living and symbiotic nitrogen-fixing microorganisms. Are these prokaryotic or eukaryotic?arrow_forwardOrganic forms of nitrogen are converted to inorganic forms via what process? a)photosynthesis b)consumption c)nitrogen fixation d)decompositionarrow_forward
- Describe two roles bacteria play in the nitrogen.arrow_forwardCan someone please help me with 3 multiple choice question, please choose the best that fits, Thank you 1) Most of the nitrogen on earth is contained in nitrogen gas in the atmosphere, which of the following orgnisms convert nitrogen to a form accessible to the rest of the biological community ? A)fungi B)nitrogen fixing prokaryotes C) plants D) nitrogen fixing protists 2)if a meteor impact or volcanic eruption injected a lot of dust into the atmosphere and significantly reduced the sunlight reaching Earth's surface for one year, which of the following marine communitites would be least affected? A)coral reef B)estuary C) intertidal D) deep -sea-vent E) wetlands 3)In terrestrial biomes, which factor is dependent on all the others? A)mineral nutrient availability B)annual average precipitation C) soil structure D)the specific plant and animal species E) light availabilityarrow_forwardWhat incentives cause humans to capture nitrogen from the air and pump it into the nitrogen cycle? What are some consequences of human augmentation of the nitrogen cycle?arrow_forward
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