Campbell Essential Biology with Physiology (6th Edition)
6th Edition
ISBN: 9780134711751
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 20, Problem 8SQ
Local conditions, such as heavy rainfall or the removal of plants, may limit the amount of nitrogen, phosphorus, or calcium available to a particular
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Students have asked these similar questions
Plant growth is limited by available nitrogen. Why is nitrogen fixation a limiting factor?
There is very little nitrogen available after fossil fuel combustion utilizes the available nitrogen.
Nitrogen must be produced by bacteria due to the inability of recycling by decomposers.
There is no nitrogen in the atmosphere; it is only found in aquatic biomes.
The stability of nitrogen gas makes it difficult to turn into nitrogen for living things.
Nitrogen is often the limiting nutrient (that is, the
nutrient in shortest supply relative to demand) across a
wide range of ecosystems. This is because:
a. nitrogen compounds like ammonia are rapidly
stored in rocks and sediments.
O b. most nitrogen is in the form of N2, which only
specialized bacteria can fix into accessible
forms.
О с.
there is very little nitrogen on Earth, compared
with other nutrients.
O d. decomposers don't return nitrogen to a usable
form.
a. What factors cause energy to decrease with each trophic level?b. How is it possible for energy to be lost and the ecosystem to stillrun efficiently?c. Are the nutrients on the earth a renewable resource? Why or why not?
Chapter 20 Solutions
Campbell Essential Biology with Physiology (6th Edition)
Ch. 20 - Prob. 1SQCh. 20 - According to the concept of competitive exclusion,...Ch. 20 - Prob. 3SQCh. 20 - Prob. 4SQCh. 20 - Why are the top predators in food chains most...Ch. 20 - Over a period of many years, grass grows on a sand...Ch. 20 - Prob. 7SQCh. 20 - Local conditions, such as heavy rainfall or the...Ch. 20 - Prob. 9SQCh. 20 - Prob. 10SQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Altered biogeochemical cycles combined with climate change increase the vulnerability of biodiversity, food security, human health, and water quality to a changing climate. a)How to control human activities to not increase the carbon dioxides level in the atmosphere and nitrogen levels in the biosphere ?arrow_forwardThe energy flow in the ecosystem is important to maintain an ecological balance. In this context, answer the following: (i) Explain why the flow of energy at different levels in an ecosystem is unidirectional and non-cyclic? (ii) Why is the number of trophic levels in an ecosystem limited?arrow_forwardDescribe why biodiversity is important to ecosystem health, even in an agricultural setting where mo… Show more Describe why biodiversity is important to ecosystem health, even in an agricultural setting where most often farmers are paid for a single, pure product like wheat or corn. Suggest possible solutions that would reduce the impacts of nutrient and pesticide runoff, while incorporating the three considerations of human sustainability. In other words, come up with a solution that would reduce ecological impacts of pesticide and nutrient runoff, while allowing farmers to ultimately meet their income needs in a socially equitable way (does not exploit anyone in the process). • Show lessarrow_forward
- Discuss the valuable significance of some nutrients in an ecosystem.arrow_forwardOn a piece of paper draw the nitrogen and the carbon cycle for a terrestrial ecosystem. The cycles should show the detail of the transformation of the element, where the transformation occurs, as well as biotic and abiotic components. Now, starting with the animal, write out your description of the nitrogen cycle then describe the carbon cycle.arrow_forwardDescribe the flow of energy through the biotic community and include the forms into which solar radiation is converted. How does this flow differ from the manner in which matter is moved through the ecosystem?arrow_forward
- a) Each trophic level, on average, will move 10% of the energy tied up in molecules to the next trophic level. How much of the energy from the sun is actually brought in to the first trophic level? b) When the producers convert energy and tie it up in the first trophic level, it is brought in as heat. True or false? c) Which of the following are true about ecosystems? Check all that apply. They contain both living and nonliving components.They contain both living and nonliving components. There is a transfer of energy through the system and some energy is lost as heat energy.There is a transfer of energy through the system and some energy is lost as heat energy. Nutrients repeatedly cycle through the ecosystem.Nutrients repeatedly cycle through the ecosystem. They represent the lowest level of biological organization.They represent the lowest level of biological organization. The ultimate source of energy for most ecosystems is organic molecules.arrow_forwardMatter is continually recycled between abiotic and biotic components of Earth's ecosystem in biogeochemical cycles. the various cycles differ from one another in several key aspects of their storage, conversion and modes of transport. A. Describe the critical processes by which nitrogen is cycled through the biotic and abiotic components of earth’s atmosphere and identify the primary storage sink for nitrogenarrow_forwardWhy are nitrogen-containing molecules limited in the biosphere? Give two reasons.arrow_forward
- Which of the following is true about energy flow in ecosystems on Earth? 99% of energy that reaches the earth is used to drive the process of photosynthesis Only about 10% of energy is moved from one trophic level to the next, while the remaining is lost as heat A very small amount of solar radiation that reaches the earth is scattered or reflected The Law of Conservation of Energy states that energy cannot be destroyed, but it can be created in plantsarrow_forwardChapter 10 of your textbook describes four biogeochemical cycles (some of which might also be called nutrient cycles) which carry elements and compounds essential to life on earth: the oxygen cycle, the carbon cycle, the nitrogen cycle and the phosphorous cycle. Read the sections in the textbook and refer to the diagrams for each of the cycles.These cycles are constantly going on around us. Think about how we are involved in these cycles. What parts of the major biogeochemical cycles do we witness or experience in our daily lives? Give one example per post or response. Think about where the element or nutrient may have come from or where it may go next and whether the process may have been affected by humans and human activities.A simple example (using the hydrologic cycle, which we studied in Chapter 7): Yesterday I was at the beach and witnessed rain falling into the ocean. This is part of the hydrologic cycle. Most of the rainwater probably came from evaporation of water from the…arrow_forwardDescribe the critical process by which nitrogen is cycled through the biotic and abiotic components of earths ecosystems and identify the primary storage sink for nitrogenarrow_forward
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