Bio Notes - Bio Notes - - living organisms share common...

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Bio Notes - living organisms share common aspects of structure, function and energy flow. - -genetic systems control the flow, exchange, storage, and use of info - organisms interact w and affect their environments - evolution explains both the unity and diversity of life - characteristics shared by all living organisims: o composed of a common set of chemical components o has genetic info w a nearly universal code o convert molecules obtainted from enviro to new biological molecules o takes E from enviro and uses to do biological work o regulates internal environment o replicates genetic info in common manner when reproducing o shares sequence similarities among a fundamental set of genes o evolves through changes in genetic info….not necessarily gradual - earth formed 4.5-4.6 billion years ago - >600 million years later, earliest life evolved. - Complex bio molecules possibly arose from random associations of chem in early enviro - 3 domains of life: BACTERIA(prokaryotes), ARCHEA(prokaryotes), and
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Bio Notes - Bio Notes - - living organisms share common...

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