1. Organization: Living things are highly organized, with complex structures and systems. This ranges from the microscopic level of cells to the macroscopic level of organs and organ systems.
2. Metabolism: All living things carry out chemical reactions to obtain and use energy. This includes processes like respiration, photosynthesis, and digestion.
3. Growth and Development: Living things grow and develop over time. This involves increasing in size and complexity, and changing in form.
4. Reproduction: Living things produce offspring, passing on their genetic information to the next generation. This ensures the continuation of the species.
5. Response to Stimuli: Living things react to changes in their environment. This could be anything from moving towards food to avoiding danger.
6. Homeostasis: Living things maintain a stable internal environment, even when the external environment changes. This involves regulating factors like temperature, pH, and water balance.
7. Adaptation: Living things evolve over time, adapting to their environment to increase their chances of survival and reproduction.
8. Heredity: Living things pass on their genetic information to their offspring, ensuring that characteristics are inherited. This is the basis of evolution.
It's important to note that these characteristics are not always absolute. For instance, some organisms might exhibit certain characteristics more strongly than others. Additionally, there are ongoing debates in biology about what precisely defines life.
