Biology-110 - Office 302 Coker Biology The study of life...

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Office- 302 Coker January 10, 2008 Biology: The study of life Foundation for questions about life and the natural world Scientific method A method used to gather info One typical method STARTS WITH OBSERVATIONS o Have to be ones you can speak clearly about (objective not subjective) o Agree on o Try to make sense of observations through 1. Prediction: generic description OR 2. Hypothesis: could possibly state in an if/then form, use of independent and dependent variable a. Know if you have a good hypothesis by the difficulty of designing experiment Characteristics of good experimentation: a. Single variable (hold other factors constant) b. Control (unmanipulated variable) c. Multiple results (many individuals and/or many trials) d. Record all variables o Example: o Independent- olestra chips
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Unformatted text preview: o Dependent-cramps o Theory: an explanation that can be highly supported to be true by supporting evidence.—NOT proven! Biology concepts: a. Life requires energy: i. Energy= the capacity to do work ii. Metabolism= cell reactions to acquire and use energy to grow, strive, and reproduce b. Interdependencies among organisms: i. Producers: make own food using external energy ii. Consumers: depend on energy stored in tissues of others iii. Decomposers: break down remains and wastes c. Energy flow: i. Can’t be used again ii. Sun iii. Organism to organism (only some passed on) iv. Energy flows in same direction v. Eventually, all energy flows back to the environment d. Six kingdoms Origin of life 1. Archaebacteria 2. Eukaryotes 3. Eubacteria...
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