Chapter 1- Campbell Biology
Chapter 1 Exploring Life Figure 1.1 Biology is the science that focuses on life Figure 1.2 Some properties of life (c) Response to the environment (a) Order (d) Regulation (g) Reproduction (f) Growth and development (b) Evolutionary adaptation (e) Energy processing Figure 1.3 Exploring Levels of Biological Organization 1 The biosphere 2 Ecosystems 3 Communities 4 Populations 5 Organisms 8 Cells 6 Organs and organ systems 7 Tissues 10 Molecules 9 Organelles 50 ?m 10 ?m 1 ?m Cell Atoms Figure 1.4 Basic scheme for energy flow through an ecosystem Producers (plants and other photosynthetic organisms) Consumers (including animals) Sunlight Chemical energy Heat Heat Ecosystem