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Characteristics of life
All living things exhibit six key characteristics: 1) organization, with levels ranging from cells to organ systems; 2) emergent properties at each level that allow more complex functions; 3) maintenance of homeostasis through responses to stimuli and adaptations; 4) reproduction, either asexually or sexually; 5) growth as cells divide and specialize; and 6) development of specific cellular functions. These characteristics distinguish living things from non-living systems.
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Characteristics of life
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- 6. What are theCharacteristics of Life? All living things exhibit six characteristics in combination.
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- 9. Living things are organized Chapter 1 What is Life? ATOM MOLECULE ORGANELLE CELL TISSUE ORGAN ORGAN SYSTEM MULTICELLULAR ORGANISM
- 10. What are theCharacteristics of Life? Each level of biological organization exhibits emergent properties, meaning that the next level does things the previous level is can’t do . Ex. Capillaries transport blood (property not exhibited by individual endothelial cells).
- 11. What are theCharacteristics of Life? Chapter 1 What is Life?
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- 13. What are theCharacteristics of Life?
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- 15. Maintenance of HomeostasisHomeostasis - the ability of an organism to maintain its internal environment despite conditions in the external environment. Human body temperature is……… if body temperature rises, you sweat. if body temperature lowers, you shiver .
- 16. Related to maintaininghomeostasis is an organism’s ability to respond to the environment through: Irritability - immediate response to a stimulus.
- 17. Maintain homeostasis Adaptation - an inherited behavior or characteristic that enables an organism to survive & reproduce. Over time, adaptations are modified by natural selection .
- 18. Growth occursbecause cells divide causing them to be more numerous which causes organisms to get bigger. Development occurs when cells take on specific jobs within the organism (like heart cell or brain cell)
- 19. 6) All livingthings reproduce Asexual reproduction - involves a single parent; offspring are genetically identical to the parent. Sexual reproduction - involves 2 parents; offspring are genetically diverse. Is it essential for an individual to reproduce?
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- 21. Review the characteristicsof life: made of cells show levels of organization use energy maintain homeostasis grow and develop reproduce
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- 23. What are theCharacteristics of Life? A Short Quiz: What is an example of homeostasis? Why is energy required by living things? Is a computer living? Explain why or why not. Is a fire living? Explain why or why not.