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BI 107IntroChapt1 - ENERGY CANNOT BE RECYCLED Scale of Life...

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7/14/2010 1 Biology 107 Dr. Potter Biology Bio = life Unicellular organisms bacteria, algae, amoeba Multicellular organisms plants, animals, fungi Biology Anatomy structure Ph i l related Physiology functioning Ecology interdependence Biology Life: 1. made of cells 2 growth and development 2. growth and development 3. reproduction 4. respond to stimuli Biology Life: 5. evolve (adapt to environment) 6. genetic info (DNA, chromosomes) 7. metabolism (chemical processes in cell) 8. homeostasis (maintain constant internal environment while ext envir changes) Biology Life: 9. need energy sun – for autotrophs (producers) via photosynthesis ex: plants, some bacteria, algae chemical – for heterotrophs (consumer) ex: animals, most bacteria, fungi, amoeba
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7/14/2010 2 Energy Flow Sun Autotrophs Organic molecules Heterotrophs
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Unformatted text preview: ENERGY CANNOT BE RECYCLED Scale of Life Levels of biological organization: atoms – molecules – cells – tissue – organ – organ system – organisms – population – community – ecosystem – planet earth Modern Taxonomy Domain Kingdom Phylum Class Order Family Genus Species Modern Taxonomy Domain (largest group, few common features) Kingdom Phylum Class Order Family Genus (smallest group, many common features) Species Three Cell Types = Domains Eukarya (has nucleus) Bacteria (prokaryote) “normal” bacteria Archaea (prokaryote) often found in extreme environments Domain Based upon 3 cell types: Domain: Archaea Bacteria Eukarya Kingdom: archaebacteria monera protista fungi plants animals...
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