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Ecology - PowerPoint PPT Presentation


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Ecology. Patterns in Science. Scale aka perspective Form and function Identification, Organization & understanding Context ie evolution Unity of life. Scale. Scale. Scale. Scale. Scale. Ecology & evolution. Organ systems & functions. Cell structure & function. DNA structure

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Ecology


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    1. Ecology

    2. Patterns in Science • Scale aka perspective • Form and function • Identification, Organization & understanding • Context ie evolution • Unity of life

    3. Scale

    4. Scale

    5. Scale

    6. Scale

    7. Scale Ecology & evolution Organ systems & functions Cell structure & function DNA structure & function

    8. Form and Function

    9. Form and Function

    10. Form and Function and Function

    11. Identification, Organization & Understanding

    12. Identification, Organization & Understanding Taxonomy

    13. Unity of life

    14. Evolution

    15. Mechanisms of evolution • Darwin • Natural selection • Differential reproductive success- individuals best suited for a given environment will survive and contribute more off spring to the next generation

    16. Understand how living and non-living environments are interrelated

    17. Ecological Scale • Organismal ecology • Population ecology • Community ecology • Ecosystem ecology • Landscape ecology

    18. Abiotic • Non-living • Chemical and physical factors • N2, O2, CO2, C • Temperature • Light • Humidity • Minerals • Landscape

    19. Life depends on abiotic

    20. Chemical composition of human body

    21. N deficient

    22. Laws of chemistry & physics • 2nd law of thermodynamics • Energy cannot be created nor destroyed, converted • Law of conservation of matter • Matter cannot be created nor destroyed, just rearranged into different spatial patterns

    23. Life depends on abiotic

    24. Life depends on abiotic

    25. Abiotic factors • Temperature • Water • Sunlight • Wind • Rock/ soil

    26. Temperature • Biological processes • Critical Minimum & Maximun • Enzyme function • Reproduction • Digestion

    27. Water • Osmolarity • Ex. Fresh water fish in constant state of hypotonicity, water always rushing into its body • Dessication • In desert, movement onto land • Ex amphibian needing moist environment

    28. Sunlight • Base E source for all life • Photosynthesis • Competition • Photoperiodism

    29. Wind • Influence temperature • Water • Ability to function • Growth • Alpine • Substrate

    30. Krumholtz

    31. Substrate • Physical structure • Mineral composition • Stability • Porosity