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 28CTQ
Compare grazing and detrital food webs. Why would they both be present in the same ecosystem?
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Compare grazing and detrital food webs. Why would they both be present in the same ecosystem?
Explain the difference between a grazing food web and adetrital food web, and give an example of each.
The temperate regions show a lower value of primary productivity as compared to trophical regions.Give two reasons.
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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- Compare and contrast the measurement of primary productivity in terrestrial versus aquatic ecosystems.arrow_forwardClassify the species in this ecosystem and draw a food web of the following species (in the image) 1. The primary producers 2. The primary consumers 3. The secondary consumers 4. The tertiary consumersarrow_forwardBased on the marine biologists research journal entries identify a primary producer a primary consumer or a secondary consumer pick one and identifyarrow_forward
- Which trophic level in an aquatic ecosystem would contain the greatest amount of usable energy? Primary consumers located 150 meters below sea level. Primary producers located 80 meters below sea level. Primary producers located 45 meters below sea level. Primary consumers located 40 meters below sea level.arrow_forwardAvailability of energy is less for entities at higher trophic levels.Why?arrow_forwardWhat is another term used to describe: The second trophic level A herbivore A primary consumer A plant and animal eater The first trophic levelarrow_forward
- Map the Ecological balance of a food web with a symbiotic relationship of Predation (Prey & Predator relationship), which is composed of Decomposers, Producers, Primary Consumers, Secondary Consumers & Tertiary Consumers. Note: Food web is composed of interconnecting food chains.arrow_forwardTrue or false? Grasslands are quick to develop into a climax community.arrow_forwardIn an ecosystem with four levels producers, primary consumers, and two higher-level consumers describe where the decomposers operate within the context of these trophic levels. Can you give me two examples?arrow_forward
- Compare and contrast the factors that limit the net primary productivity in terrestrial versus aquatic ecosystems.arrow_forwardUsing the concepts of trophic levels and energy flow, explain why the ecological footprint of a vegetarian person is smaller than that of a meat-eaterarrow_forwardPredict the ecosystem impacts that could result from fertilizer runoff on the food web shown below. Speculate how these impacts would affect each trophic level.arrow_forward
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