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The 7 Themes of Biology. Biology . Biology – The study of LIFE! Anything considered alive share the following 7 characteristics. 1. Cells. All living things are made of one or more cells The cell is the basic structure of all living things. 2. Reproduction.
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Biology • Biology – The study of LIFE! • Anything considered alive share the following 7 characteristics
1. Cells • All living things are made of one or more cells • The cell is the basic structure of all living things
2. Reproduction • All living organisms reproduce • Sexual reproduction creates genetic variation • Asexual reproduction creates exact copies
3. Metabolism • Metabolism - All the chemical reactions that create and use energy to run all living processes • Plants capture the energy of the sun and convert it to food • All other organisms eat the plants or they eat the animals that eat the plants
4. Homeostasis • Homeostasis – maintaining a stable internal environment in spite of external changes • Balancing internal conditions with external conditions
5. Heredity • Passing on characteristics to the next generation • Genes carried on DNA are passed from parent to offspring
6. Evolution • Changes in the traits of species over time • Individuals with the best traits for their environment will survive and pass on their genes to the next generation
7. Interdependence • The interaction of living organisms with each other and with their environment • Dependence on one another and the ecosystem