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Biology
The characteristics of life
Term | Definition |
---|---|
Diversity | There are a million different species of plants and animals on earth |
Metabolism | Is the sum of all chemical reactions in and organism |
Anabolic | Reactions use energy to join small molecules together to for larger molecules e.g Photosynthesis |
Catabolic | Reactions use energy to break down large molecules into smaller ones e.g Respiration |
Continuity of life | Is the ability of an organism to live from one generation to the next-to achieve this reproduction and heredity are required |
Life | Is defined by possessing all five of the following features - Movement, Respiration, Sensitivity, Nutrition, Excretion, Reproduction and Growth |
Organised | Composed of tiny units called cells, tissues, organs and organ systems. |
Nutrition | Is the way organism obtain and use food. Plan VS Animal |
Excretion | Is the removal of waste products of metabolism from the body |
Response | The way in which all living things react to change(called stimuli) in their environment |
Repoduction | Is the production of new individuals |