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BIOLOGY AS A SCIENCE

BIOLOGY AS A SCIENCE. BIOLOGY AS A SCIENCE. THE SCIENTIFIC METHOD THE UNIVERSAL SCIENTIFIC APPROACH TO PROBLEM- SOLVING. BIOLOGY AS A SCIENCE. IDENTIFY THE PROBLEM A SCIENTIFIC PROBLEM IS PHRASED IN THE FORM OF A QUESTION EXAMPLE??. FORMULATE A HYPOTHESIS

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BIOLOGY AS A SCIENCE

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  1. BIOLOGY AS A SCIENCE

  2. BIOLOGY AS A SCIENCE • THE SCIENTIFIC METHOD • THE UNIVERSAL SCIENTIFIC APPROACHTO PROBLEM-SOLVING

  3. BIOLOGY AS A SCIENCE • IDENTIFY THE PROBLEM • A SCIENTIFIC PROBLEM IS PHRASED IN THE FORM OF A QUESTION • EXAMPLE?? • FORMULATE A HYPOTHESIS • A HYPOTHESIS IS AN EDUCATED GUESS (*POSSIBLE EXPLANATION*) • “IF, THEN” STATEMENT • NEVER IN THE FORM OF A QUESTION!!!!! • EXAMPLE???

  4. BIOLOGY AS A SCIENCE • TESTING THE HYPOTHESIS – EXPERIMENTATION • SCIENTISTS WILL SET UP A SITUATION WHERE A PARTICULAR OBSERVATION CAN BE MADE • OFTEN SCIENTISTS USE CONTROLLED EXPERIMENTS • TWO, OR MORE, EXPERIMENTS ARE SET UP WHERE ONLY A SINGLE FACTOR IS DIFFERENT BETWEEN THEM • THAT SINGLE FACTOR IS CALLED A VARIABLE

  5. BIOLOGY AS A SCIENCE • CONTROLLEDEXPERIMENT • CONTROLGROUP VS.EXPERIMENTALGROUP

  6. BIOLOGY AS A SCIENCE • OBSERVE AND RECORD DATA • ANALYZE DATA • DRAW CONCLUSIONS • RETEST / RETEST / RETEST / RETEST / RETEST / RETEST / RETEST / RETEST / RETEST / RETEST • SCIENTIFIC THEORIES • EXPLANATIONS THAT APPLY TO A BROAD RANGE OF PHENOMENA AND THAT ARE SUPPORTED BY EXPERIMENTAL EVIDENCE • SCIENTIFIC LAWS • A STATEMENT THAT DESCRIBES SOME ASPECT OF A PHENOMENA THAT IS ALWAYS TRUE…NOT AN EXPLANATION!!!

  7. BIOLOGY AS A SCIENCE • SI SYSTEM

  8. BIOLOGY AS A SCIENCE • TOOLS OF THE BIOLOGIST • THE LIGHT MICROSCOPE • THE SIMPLE MICROSCOPE • THE COMPOUND MICROSCOPE • THE PHASE-CONTRAST MICROSCOPE • THE STEREOMICROSCOPE • THE ELECTRON MICROSCOPE • LABORATORY TECHNIQUES • CENTRIFUGATION • MICRODISSECTION • CHROMATOGRAPHY • ELECTROPHORESIS • SPECTROPHOTOMETERS

  9. BIOLOGY AS A SCIENCE • THE LIGHT MICROSCOPE • MAGNIFICATION VS.RESOLUTION

  10. BIOLOGY AS A SCIENCE • PHASE-CONTRAST MICROSCOPES

  11. BIOLOGY AS A SCIENCE • STEREOMICROSCOPES • HELPFUL TO SEEEXTERIOR SURFACES, USUALLY PROVIDES A MORE 3-D IMAGE

  12. BIOLOGY AS A SCIENCE • ELECTRON MICROSCOPES • TRANSMISSION VS SCANNING • 1,000,000x MAGNIFACTION, BUT…

  13. BIOLOGY AS A SCIENCE • ELECTRON MICROSCOPES • TRANSMISSION VS SCANNING • 1,000,000x MAGNIFACTION, BUT…

  14. BIOLOGY AS A SCIENCE • LABORATORY TECHNIQUES • CENTRIFUGATION • CHROMATOGRAPHY • ELECTROPHORESIS

  15. BIOLOGY AS A SCIENCE • LET’S KEEP LEARNING…SO YOU ARE ALL SMART ENOUGH TO AVOID DOING…

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