Properties of Life

Properties of Life

? Order? cell structures formed from specific molecular patterns Necessary but not sufficient

? Reproduction? cells divide to make nearly exact copies of themselves Caveats: mules are sterile, viruses reproduce only within hosts

? Growth and development? directed by heredity Necessary but not sufficient

? Energy utilization or metabolism? create and maintain order, reproduce, grow Necessary but not sufficient

? Response to environment? interactions and active responses Necessary but not sufficient

? Evolutionary adaptation? life evolves over time, due to interactions with environment, to produce positive adaptations and entirely new species Sufficient

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