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OBSERVATIONS • Sea otters feed significantly on sea urchins, often keeping urchin abundance 'in check'. • Sea urchins feed heavily on kelp, decimating kelp forests when urchin abundance is high. • Kelp forests protect the shoreline from coastal erosion by buffering wave action. • Orcas have been observed feeding on sea otters in the kelp forests of western Alaska. Table 1. Hypothesizing the relationship(s) between orcas, otters, urchins, kelp, and erosion. ↑ = increasing; V = decreasing When the abundance of: 1 or vabundance/incidence of: select ↑ or v sea otters sea urchins decreases sea otters sea urchins Choose One: sea urchins 个 kelp Choose One: sea urchins kelp Choose One: orcas sea otters Choose One: orcas sea otters Choose One: kelp coastal erosion Choose One: kelp coastal erosion Choose One: sea urchins coastal erosion Choose One: sea urchins coastal erosion Choose One: sea otters coastal erosion Choose One: sea otters coastal erosion Choose One: orcas sea urchins Choose One: orcas sea urchins Choose One: kelp Choose One: orcas kelp Choose One: orcas Will coastal erosion or V when sea otter abundance is low? Choose One:

OBSERVATIONS • Sea otters feed significantly on sea urchins, often keeping urchin abundance 'in check'. • Sea urchins feed heavily on kelp, decimating kelp forests when urchin abundance is high. • Kelp forests protect the shoreline from coastal erosion by buffering wave action. • Orcas have been observed feeding on sea otters in the kelp forests of western Alaska. Table 1. Hypothesizing the relationship(s) between orcas, otters, urchins, kelp, and erosion. ↑ = increasing; V = decreasing When the abundance of: 1 or vabundance/incidence of: select ↑ or v sea otters sea urchins decreases sea otters sea urchins Choose One: sea urchins 个 kelp Choose One: sea urchins kelp Choose One: orcas sea otters Choose One: orcas sea otters Choose One: kelp coastal erosion Choose One: kelp coastal erosion Choose One: sea urchins coastal erosion Choose One: sea urchins coastal erosion Choose One: sea otters coastal erosion Choose One: sea otters coastal erosion Choose One: orcas sea urchins Choose One: orcas sea urchins Choose One: kelp Choose One: orcas kelp Choose One: orcas Will coastal erosion or V when sea otter abundance is low? Choose One:

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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OBSERVATIONS • Sea otters feed significantly on sea urchins, often keeping urchin abundance 'in check'. • Sea urchins feed heavily on kelp, decimating kelp forests when urchin abundance is high. • Kelp forests protect the shoreline from coastal erosion by buffering wave action. • Orcas have been observed feeding on sea otters in the kelp forests of western Alaska. Table 1. Hypothesizing the relationship(s) between orcas, otters, urchins, kelp, and erosion. ↑ = increasing; V = decreasing %D When the abundance of: or v abundance/incidence of: select ↑ or V sea otters 个 sea urchins decreases sea otters sea urchins Choose One: sea urchins kelp Choose One: sea urchins kelp Choose One: orcas sea otters Choose One: orcas sea otters Choose One: kelp coastal erosion Choose One: kelp coastal erosion Choose One: sea urchins coastal erosion Choose One: sea urchins coastal erosion Choose One: sea otters coastal erosion Choose One: sea otters coastal erosion Choose One: orcas sea urchins Choose One: orcas sea urchins Choose One: kelp Choose One: orcas kelp Choose One: orcas Will coastal erosion ↑ or V when sea otter abundance is low? Choose One:
Transcribed Image Text:OBSERVATIONS • Sea otters feed significantly on sea urchins, often keeping urchin abundance 'in check'. • Sea urchins feed heavily on kelp, decimating kelp forests when urchin abundance is high. • Kelp forests protect the shoreline from coastal erosion by buffering wave action. • Orcas have been observed feeding on sea otters in the kelp forests of western Alaska. Table 1. Hypothesizing the relationship(s) between orcas, otters, urchins, kelp, and erosion. ↑ = increasing; V = decreasing %D When the abundance of: or v abundance/incidence of: select ↑ or V sea otters 个 sea urchins decreases sea otters sea urchins Choose One: sea urchins kelp Choose One: sea urchins kelp Choose One: orcas sea otters Choose One: orcas sea otters Choose One: kelp coastal erosion Choose One: kelp coastal erosion Choose One: sea urchins coastal erosion Choose One: sea urchins coastal erosion Choose One: sea otters coastal erosion Choose One: sea otters coastal erosion Choose One: orcas sea urchins Choose One: orcas sea urchins Choose One: kelp Choose One: orcas kelp Choose One: orcas Will coastal erosion ↑ or V when sea otter abundance is low? Choose One:
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The food chain is defined as the linear sequence of transfer or transmission of matter and energy in the type of food from one organism to another.

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