Unit 2- Life science Study note

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Name Date Principles of Ecology Section 2.1 Organisms and Their Relationships Main Idea Details Skim Section 1 of the chapter. Write two questions that come to mind from the headings and illustration captions. New Vocabulary Use the vocabulary words in the left margin to complete the graphic organizer below. List the biological levels from largest to smallest. abiotic factor Levels of Organization biological community biome biosphere biotic factor commensalism Compare the terms in the tables by defining them side by side. Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, ecology habitat niche ecosystem habitat abiotic factor biotic factor mutualism niche parasitism population symbiosis predation commensalism mutualism parasitism symbiosis Inc. predation 12 Principles of Ecology

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