CH.              CH 1 -  THE SCIENCE OF BIOLOGY

            I. PROPERTIES OF LIFE - 7  (p. 3)

1.    HIGHLY ORGANIZED

2.    SENSITIVE - respond to stimuli (detectable change in envt.)

& ADAPTABLE - become suitable to envt.

3.    GROW

4.    DEVELOP          

5.    REPRODUCE

6.    REGULATION - energy converters

7.    HOMEOSTASIS - constant internal envt.

            II. LEVELS OF BIOLOGICAL ORGANIZATION - HEIRARCHY (p. 2-3)

      Subatomic particles è Atoms è Molecules è Macromolecules è Organelles è Cells è Tissues è Organs è Organ System è Organism è Population  è Species è Community (All living things in one area) è Ecosystem/Biome (community + physical environment) è Biosphere (whole world).

          III. SCIENCE

            A. INDUCTIVE REASONING - specific observations è generalizations

            B. SCIENTIFIC METHOD - the nature of science - process (p. 5)

1.    Observation - room is dark

2.    Hypothesis - suggested explanations (switch off, bad bulb, going blind!)

3.    Experiment - test hypothesis 1 variable at a time (with controls)

4.    Theory - best pool of experimental, confirmed evidence, ongoing

5.    Limitations:         a. observable & measurable, hypo. must be testable

                                    b. can't make value judgments

            IV. UNIFYING PRINCIPLES OF CELL BIOLOGY = CELL THEORY (p. 12-14)

1. All living things are made of cells.  Cells are the basic unit of life.

            Named by Hooke.  Viruses?

2. All cells require energy

3. All cells arise from pre-existing cells