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Measurement and the Sciences
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2-1 Section Review acid algae arthropods atoms autotrophs bacteria biome blood body bones bottom called carbon dioxide cause cell membrane Celsius Chapter characteristics chemical chromosomes classified climate color compounds Connection—You contains Critical Thinking—Applying Concepts Critical Thinking—Making Inferences Critical Thinking—Relating Concepts cycle Describe diagram Earth earthquake echinoderms electric electromagnetic electrons elements environment example Explain figure force fossils function fungi gene genetic Guide for Reading heterotrophs human land layer light living things mammals mass materials measure microscope minerals molecules mollusks Monerans move multicellular muscle nuclear nuclear fusion nucleus object ocean organisms oxygen pairs particles photosynthesis plants and animals pollution pressure produce proteins protists Punnett square question radioactive reaction Reading Focus recessive gene reproduction rocks scientists Section Review seeds sex cells shown shows soil species structure substance telescopes temperature tissue traits tube types wastes waves weather wind World