BSC108- Notes 1
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This 1 page Class Notes was uploaded by Leah Larabee on Friday January 23, 2015. The Class Notes belongs to BSC 108 at University of Alabama - Tuscaloosa taught by Dr. Yates in Spring2015. Since its upload, it has received 151 views.
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Date Created: 01/23/15
Chapter 1 Biology is the study of life What is life 0 It defies a simple onesentence definition Theme 1 The Scope of Life and Emergent Properties Theme 2 Organisms exchange matter and energy within ecosystems Every organism interacts with its environment Both are affected Theme 3 Cells are an organism s basic unit Cells are the lowest level of organization that can perform all the activities of life All cells 0 Are enclosed by a membrane 0 Use DNA as the recipe for the process oflife 2 kinds of cells Prokaryotic and Eukaryotic Theme 4 The Continuity of Life is based on the information in DNA Chromosomes contain most of a cell s genetic material in the form of DNA DNA is the substance of genes Genes are the units of inheritance that transmit information from parents to offspring Theme 5 Diversity is the hallmark of life and the diverse forms of life fit their functions There are three main groups of life called domains 1 Eukarya 2 Bacteria 3 Archae Theme 6 Evolution The word science is derived from a Latin verb meaning to knowquot Scientists use two main forms of inquiry 1 Discovery science 0 Describes natural structures and processes 2 Hypothesis based science 0 Observations lead to questions 0 Questions lead to hypotheses o Tentative answers to a well framed questions I Should be specific I Usually If thenquot statements Tested by observation or experimentation Failure to falsify a hypothesis does not prove it
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