Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 46, Problem 26CTQ
Compare and contrast food chains and food webs. What are the strengths of each concept in describing ecosystems?
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Chapter 46 Solutions
Biology 2e
Ch. 46 - Figure 46.8 Why do you think the value for gross...Ch. 46 - Figure 46.10 Pyramids depicting the number of...Ch. 46 - Figure 46.17 Which of the following statements...Ch. 46 - The ability of an ecosystem to return to its...Ch. 46 - A re-created ecosystem in a laboratory environment...Ch. 46 - Decomposers are associated with which class of...Ch. 46 - The primary producers in an ocean grazing food web...Ch. 46 - What term describes the use of mathematical...Ch. 46 - The position of an organism along a food chain is...Ch. 46 - The loss of an apex consumer would impact which...
Ch. 46 - A food chain would be a better resource than a...Ch. 46 - The weight of living organisms in an ecosystem at...Ch. 46 - Which term describes the process whereby toxic...Ch. 46 - Organisms that can make their own food using...Ch. 46 - In the English Channel ecosystem, the number of...Ch. 46 - What law of chemistry determines how much energy...Ch. 46 - The mussels that live at the NW Eifuku volcano are...Ch. 46 - The movement of mineral nutrients through...Ch. 46 - Carbon is present in the atmosphere as ________...Ch. 46 - The majority of water found on Earth is: ice water...Ch. 46 - The average time a molecule spends in its...Ch. 46 - The process whereby oxygen is depleted by the...Ch. 46 - The process whereby nitrogen is brought into...Ch. 46 - Which of the following approaches would be the...Ch. 46 - How would loss of fungi in a forest effect...Ch. 46 - Compare and contrast food chains and food webs....Ch. 46 - Describe freshwater, ocean, and terrestrial...Ch. 46 - Compare grazing and detrital food webs. Why would...Ch. 46 - How does the microcosm modeling approach differ...Ch. 46 - How do conceptual and analytical models of...Ch. 46 - Compare the three types of ecological pyramids and...Ch. 46 - How does the amount of food a warm-blooded animal...Ch. 46 - A study uses an inverted pyramid to demonstrate...Ch. 46 - Describe what a pyramid of numbers would like if...Ch. 46 - Describe nitrogen fixation and why it is important...Ch. 46 - What are the factors that cause dead zones?...Ch. 46 - Why are drinking water supplies still a major...Ch. 46 - Discuss how the human disruption of the carbon...
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- With reference to a self- constructed food web, outline the series of interactive mechanisms that make marine ecosystem self- sustaining and an open systemarrow_forwardWhich are the organisms in one of the food chains in this food web? Who is the producer in the food chain you circled? explain why the hawk in this food web is a trophic omnivore even though it does not eat both plants and animals.arrow_forwardCompare an ecological pyramid with a food chain.arrow_forward
- Describe the factors of matter and flow of energy from one trophies level to another within an ecosystemarrow_forwardWhat ecological principles are derived from the study of food chains?arrow_forwardThe major primary producers at the base of the food chain in aquatic ecosystems usually belong to what group?arrow_forward
- Describe Bioaccumulation and biomagnification. In a food chain or web what are the type of organisms most affected by contamination, the lower trophic levels, or the top predators.arrow_forwardIs it possible to describe abiotic factors as more or less important to an ecosystem than biotic factors? Explain your reasoning.arrow_forwardDraw the simplest stable ecosystem you can imagine.arrow_forward
- Ecosystem is an independently functioning unit with the most important processes being energy flow and nutrient cycling. Using food chain and biogeochemical cycles as examples, explain both the processes and its importance in functioning of Ecosystem.arrow_forwardWhat makes an ecosystem resilient? Use this sentence starter: ecosystems are resilient because... Use THE TEXT GIVEN ONLYarrow_forwardIf a community within an ecosystem is stable does that mean the entire ecosystem can be considered stable as well?arrow_forward
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