Characteristics of Living Things Notes
Characteristics of Living Things Notes
Scientists estimate that there are 10 million different organisms found on our planet.
1. All LT are made of CELLs – contain living matter separated from the environment by a border
• Basic (smallest) unit of a living thing
• A chemical factory
• Most cells are small, one can be an entire organism!
• Cells are found in non-living matter only if it once was alive! EX – wood
2. Living Things USE ENERGY –
• Energy is the ability to make things move or change
• Living things get energy from their environment (plants-sunlight, animals-food)
• Metabolism – a balance between energy production and energy use
3. Living Things REPRODUCE
• Reproduction is a process by which organisms make more organisms like themselves
4. Living Things GROW and DEVELOP
• All living things grow
• Most organisms go through a cycle of change called development
5. Living Things RESPOND to the Environment
Stimulus – a change that occurs in the environment
Response – a reaction to a stimulus
6. Living Things ADAPT to the environment
• An adaptation is a characteristic that enables an organism to live and reproduce successfully in its environment Beaver – tail for swimming, teeth for wood cutting, fur for warmth and protection, claws for protection
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