BIO 1201 1nd Edition Lecture 1 Outline of Last Lecture I. N/AOutline of Current Lecture II.Definition of biologyIII.How Biology Studies LifeIV.Requirements for LifeV. Organizing LifeCurrent LectureI. Biology: the scientific study of lifeII. Biology studies life by:a. Studying relatedness of organisms/understanding how organisms are similar or differentb. Classifying organisms to understand what they do and their place in the worldc. Trying to understand how organisms workIII. Requirements for Lifea. Life is organizedb. Life requires materials and energy; life depends on other lifei. Energy: the ability to do workii. Photosynthesis: converting solar energy into chemical energy of nutrient molecules; carried out by producers (i.e., plants) to make glucoseiii. Consumers (such as animals) eat producers and decomposers (such as bacteria) eat both consumers and producersc. Living organisms find energy/nutrients by interacting with (sensing and responding to) the environment; usually involves movementd. Living organisms reproducee. Living organisms have adaptations that make them suited to their way of lifeIV. Organizing Lifea. Reductionist View: if you understand the atomic and molecular levels, you can understand higher levelsb. Cell: the smallest, most basic unit of life; made by molecules, which are made by atomsi. In multicellular organisms, cells form tissues, which form organs, which form organ systemsThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.c. Population: all members of a species within a particular aread. Community: interacting populations (i.e., humans, animals, and trees)e. Ecosystem: communities interacting with the physical environmentf. Biosphere: ecosystems of the planet; the zone of air, land, and water with living organismsg. Categories of life (in order from least to most specific): domain, kingdom, phylum, class, order, family, genus, speciesi. The three domains are Bacteria, Archaea, and Eukaryaii. The kingdoms Plantae (plants) and Animalia (animals, humans) both belong in the Eukarya
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