topic: biotic interactionbase your answer on the model and analyze the relationship of the key players. the explanations corresponds to the causes/effects. please answer all blanks observationcauses or effects (specify)logical explanationexamplehigh density of sea urchin populationlow number of sea otter (cause)high nutrients (cause)low density of kelp (effect)low predation rateturbid water decreases visibility of preyhigh grazing rate of sea urchin 1low density of sea urchin population______________high density of kelps (effect)____________high predation rate______________delayed effect due to dwindling food for otter2___________________more sea urchin (cause)___________________low nutrients (cause)_______________turbid water inhibits photosynthesis, affects visibility of predatorslow nutrition, clear water3high density of giant kelp population_____________________high otter population (cause, secondary)________________less grazers___________provided nutrition for kelp4high density of sea otter populationhigh density of sea urchin (cause)__________________moderate to low nutrient (cause)______________over predation__________________5__________________low population of sea urchin (cause)high density of sea urchin population (effect)high nutrient (cause)___________________________________________________ sea otter(predator)LowHigh4sea urchingiant kelp(prey, grazer)(producer)HighLowWater NutrientsThe Ecosystem Architecture and the Circle of Life.

observation causes or effects (specify) logical explanation example high density of sea…

Answered: interaction

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter24: Principles Of Ecology

Section: Chapter Questions

Problem 2SQ

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topic: biotic interaction

base your answer on the model and analyze the relationship of the key players. the explanations corresponds to the causes/effects. please answer all blanks

	observation	causes or effects (specify)	logical explanation
example	high density of sea urchin population	low number of sea otter (cause) high nutrients (cause) low density of kelp (effect)	low predation rate turbid water decreases visibility of prey high grazing rate of sea urchin
1	low density of sea urchin population	______________ high density of kelps (effect) ____________	high predation rate ______________ delayed effect due to dwindling food for otter
2	___________________	more sea urchin (cause) ___________________ low nutrients (cause)	_______________ turbid water inhibits photosynthesis, affects visibility of predators low nutrition, clear water
3	high density of giant kelp population	_____________________ high otter population (cause, secondary) ________________	less grazers ___________ provided nutrition for kelp
4	high density of sea otter population	high density of sea urchin (cause) __________________ moderate to low nutrient (cause)	______________ over predation __________________
5	__________________	low population of sea urchin (cause) high density of sea urchin population (effect) high nutrient (cause)	_________________ _________________ _________________

sea otter
(predator)
Low
High4
sea urchin
giant kelp
(prey, grazer)
(producer)
High
Low
Water Nutrients
The Ecosystem Architecture and the Circle of Life.

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