[ppt]chapter 1 the science of · web viewhow can experiments and observations help inform our...
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Introduction to Introduction to BiologyBiology
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Essential Questions:What are the characteristics of life?How can experiments and observations help inform our understanding of biology?
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Biology – The Study of Biology – The Study of LifeLife
Life arose more than 3.5 billion years ago
First organisms (living things) were single celled
Only life on Earth for millions of years
Organisms changed over time (evolved)
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Fields of Biology
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Units of Biology : Units of Biology : BiochemistryBiochemistry Properties of water Macromolecules Enzymes
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Units of Biology : Cell Units of Biology : Cell BiologyBiology Plant and Animal Cell Cell Membrane Photosynthesis Respiration Plants Cell Cycle and Mitosis
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Units of Biology : GeneticsUnits of Biology : Genetics Meiosis Human Reproduction Mendel’s Laws Protein synthesis
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Units of Biology : EvolutionUnits of Biology : Evolution Natural Selection Theory of Evolution Classification
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Units of Biology : EcologyUnits of Biology : Ecology Food web Changes in Ecosystem Loss of Biodiversity Human Impact
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Units of Biology : Human Units of Biology : Human PhysiologyPhysiology The Brain Blood Flow Immune Systems
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What is Life? How do we know something is
living?
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7 Characteristics of Living Things 1. All living things are made of cells.
Cells are the basic unit of life. 2. All living things uses energy.
Energy comes from the sun. 3. All living things respond to
stimulus (stimuli- pleural). Stimulus- change in environment
(hot= sweat)
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7 Characteristics of Living Things 4. All living things reproduce.
Sexual or asexual 5. All living things grow and
develop. 6. All living things change to fit
their environment (adapt). If not, they risk becoming extinct.
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7 Characteristics of Living Things 7. All living things have DNA.
DNA provides instructions for making molecules called proteins. Proteins build cells.
DNA carries the genetic material from parent to offspring (heredity).
https://www.youtube.com/watch?v=0NnFhY_STFQ
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