Campbell Chapter 1 Notes

Campbell Chapter 1 Notes - Armand Hershowitz Chapter 1...

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Armand Hershowitz Chapter 1 Life’s levels of organization define the scope of biology Biology Hierarchy o BecPoot.com B iosphere E cosystem C ommunity P opulation O rganism O rgan S ystem O rgan T issue C ell O rganelle M olecule [cluster of atoms held together by chemical bonds (DNA)] Living organisms and their environments form interconnecting webs Ecosystem Web (Recycling of chemical nutrients and Energy Flow) (Gains and losses energy) o Photosynthesizers (Plants) produce food [Energy (sunlight) + CO2 (air) + H20 (soil)] o Consumers (Animals) eat plants and other animals They also give out CO2 and consume O2 Decomposers (Fungi/Bacteria/Small Animals) recycle dead matter into simple nutrients for plants to use to reincorporate into the Web Cells are the structural and functional units of life Emergent properties= “the whole is greater than the sum of its parts” o Ex. As you travel up Biology Hierarchy more and more novel properties emerge
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