Biology 1113_Week 1 Notes
Biology 1113_Week 1 Notes Biology 1113
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This 2 page Class Notes was uploaded by Jessy Notetaker on Friday August 26, 2016. The Class Notes belongs to Biology 1113 at Ohio State University taught by Dr. Ball and Dr. Weinstein in Summer 2015. Since its upload, it has received 494 views. For similar materials see Biology 1113 in Biology at Ohio State University.
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Date Created: 08/26/16
What is Science? Comes from the Latin "scientia" meaning knowledge Systematic knowledge of the physical or material world gained through observation and experimentation Commonly misused terms Hypothesis Tentative explanation for an observation, phenomenon, or scientific problem that can be tested by further investigation It is not a question It is more than an educated guess! Usually set in an "if, then" statement Theory A wellsubstantiated explanation of some aspect of the natural world, based o a body of facts that have been repeatedly confirmed through observation and experimentation Broad in scope Examples include: heliocentric theory, cell theory, theory of relativity Nature of Science Science has limits Science cannot answer every sort of question Is there a God? Are ghosts real? It needs to be testable Science is based on observations We can't see dinosaurs, but we can observe fossils Science is inherently uncertain Science doesn't PROVE anything Science can be done poorly and misused Example: human experiments during WWII Bad (Misleading) Science Poorly (unscientifically) conducted Small sample size Changing more than one variable at a time Data Fudged, cherrypicked, exaggerated, or negative results ignored Conclusions not supported by data Correlation does not equal causation As ice cream sales increase, number of drowning deaths increase Ice cream does not make people drown Summer makes people buy more ice cream More people are swimming in the summer, so more people are going to drown Bias involved Conflict of interest You are testing a new drug, but the manufacturer of that drug is funding your experiments Outright lies Ruins reputation Bad Science examples: cell phones and brain cancer, vaccines cause autism, any "miracle" cures and weight loss drugs Science is a social process Scientists are not isolated In their labs They have collaborators No one can be an expert in everything Sometimes you need a chemist, a physicist, or a computer programmer System of checks and balances with each other using peerreviewed journals How do you know what to believe? Hope this class will help you determine Teach us how to look objectively Science of Life Water Unique properties dues to the structure and interactions of its molecules Held together by polar covalent bonds H = slightly + O = slightly Emergent properties of Water Several water molecules are held together by Hydrogen bonds Attributes to most properties of water Cohesion Water molecules stick together Water droplets on a penny Adhesion Water molecules sticking to something else Bottom of a leaf Con’t. On Monday Due soon: PreTOSLS survey due 9/1 Mastering Biology; first assignment due Tuesday night
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