BIOLOGY:CONCEPTS+INVEST.-ACCESS >I<
4th Edition
ISBN: 9781260505498
Author: Hoefnagels
Publisher: MCG
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Chapter 38, Problem 12WIO
Summary Introduction
To determine:
The changes that would happen if there is no bacteria in the body and also determine the changes in nutrient cycle without bacteria.
Concept introduction:
It is known that human body has several friendly bacteria. These bacteria play some important roles in the human body. Nutrient cycle is the movement of organic and inorganic matter back into the production. In nutrient cycle, the energy moves in unidirectional pathway.
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Chapter 38 Solutions
BIOLOGY:CONCEPTS+INVEST.-ACCESS >I<
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 - Draw an energy pyramid for an ecosystem with three...Ch. 38.3 - Prob. 7MCCh. 38.4 - Prob. 1MCCh. 38.4 - Prob. 2MCCh. 38.4 - Prob. 3MCCh. 38.4 - Prob. 4MCCh. 38.4 - Prob. 5MCCh. 38.5 - Use figure 38.25 to describe the relationships...Ch. 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. 10MCQCh. 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 - Officials in the northeastern United States arc...Ch. 38 - Prob. 11WIOCh. 38 - Prob. 12WIOCh. 38 - 1. Review the definitions of ecology, populations,...Ch. 38 - Prob. 2PITCh. 38 - Prob. 3PIT
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- Living organisms play an important role in the recycling of many elements within an ecosystem. Discuss how various types of organisms and their biochemical reactions contribute to the recycling of either carbon or nitrogen in an ecosystem. Include in your answer one way in which human activity has an impact on the nutrient cycle you have chosen.arrow_forwardA pest that could become a major pests when something change in the agroecosystem?arrow_forwardChoose 1 of the biochemical nutrients. Discuss how it enters the ecosystem, leaves the ecosystem, and describe how human activity is taking the cycle out of balance.arrow_forward
- Which nutrient moves into plants during primary production? a.phosphorus b. nitrogen c. carbon d. none e. all threearrow_forwardPlease answer this question with at least 3 FULL sentences for each part. What is the difference between food swamps and food deserts? How are they the same?arrow_forwardAutotrophs are unable to make their own food so they depend on other organisms for their source of food. Heterotrophs are producers. a. Both statements are true b. The first statement is true c. Both statements are false. d. The second statement is true.arrow_forward
- Imagine a region of soil became contaminated, killing bacteria that decompose dead plants and animals. How would this effect the carbon cycle in the area? Be specific in stating where carbon would accumulate in the cycle.arrow_forwardWhich fraction of phosphorus is available for photosynthetic organisms to directly uptake and use? Organic phosphorus in detritus Absorbed phosphorus in clay Phosphorus in minerals in rocks Soluble phosphorus in waterarrow_forwardWhy is the phosphorus cycle different from the nitrogen cyclearrow_forward
- 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.arrow_forwardPlants obtain ______ by taking it up from the air. a. nitrogen c. phosphorus b. carbon d. waterarrow_forwardAn organism exists for long periods by using only CO2 and H2O. herbivore. carnivore. decomposer. autotroph. heterotroph.arrow_forward
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