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Unformatted text preview: PBIO Intro 1-7-10 Introduction to Plant Biology Science: a search for knowledge of the natural world o Question hypothesis test hypothesis analyze results conclusion (theory) Multiple Disciplines in Plant Biology o Plant anatomy: study of the internal structure of plants o Plant physiology: study of plant function o Plant ecology: study of the interaction of plants with one another and with the environment o Plant taxonomy and systematics: naming and classifying plants** o Plant cell biology: study of plant cell structure and function o Plant molecular biology: study of genes and their functions Why Do We Need to Care About Our Plants? o Oxygen animal life would suffocate within 11 years if no oxygen was replaced by plants o Remove large amounts of carbon dioxide Up to 56 billion tons of CO2 are fixed by land plants per year One of the most important reservoirs of carbon o CO2+H20 (photosynthesis) CHO+02 o Source of food, fibers, shelter, and medicine necessary for survival...
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