BIOLOGY 1113H Chapter Notes - Chapter 1: Dependent And Independent Variables, Eukaryote, Control Variable
Document Summary
Chapter 1: evolution, the themes of biology, and scientific inquiry. Evolution: the process of change that has transformed life on earth from its earliest beginnings to the diversity of organisms living today. 1-1| the study of life reveals common themes. Unifying themes: organization, information, energy and matter, interactions, evolution. Theme: new properties emerge at successive levels of biological organization. Levels of biological organization: biosphere, ecosystem, communities, populations, organisms, organs and organ systems, tissues, cells, organelles, molecules. Reductionism: reduces complex systems to simpler components which are more manageable to study. Emergent properties: novel properties that emerge at each level that are absent from the proceeding level. Systems biology: the exploration of a biological system by analyzing the interactions among its parts. The cell: an organism"s basic unit of structure and function. All cells share certain characteristics (enclosed by membrane, etc. ) Two kinds of cells: prokaryotic (single-cell microorganisms like bacteria and archaea) a.