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Taken as a group,  living things evolve.

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Taken as a group,  living things evolve.

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Over generation, group of organisms evolve, or change over time. Evolutionary change links all forms of life to a common origin more than 3.5 billion years ago. Evidence of this shared history is found all aspects of living and fossil organisms, from physical features to structures of proteins to sequences of information in DNA.

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Organisms are composed of one or more cells----- the smallest unit considered fully alive. Cells can grow, respond to their surrounding, and reproduce. Despite their small size. cell are complex and highly organized.

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Living things obtain and use material and energy

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Living things obtain and use material and energy

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All organism must take in materials and energy to grow, develop, and reproduce. The combination of chemical reactions through which an organisms builds up or brake down materials is called metabolism.

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Living thing maintain a stabble internal environment.

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Living thing maintain a stabble internal environment.

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All organisms need to keep their internal enviroment re;atively stable, even when external conditions chage dramatically. This condition is called homeostasis.

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All organisms reproduce, which means that they produce new similar organisms. Most plants and animals engage in sexual reproduction. In sexual reproduction, cells from two parents unite to for the first cell of an new organisms reproduce through asexual reproduction, in which a single organism produced offspring identical to itself.

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Living things respond to their enviroment.

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Living things respond to their enviroment.

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Organisms detect and respond to stimuli form their environment. A stimulus us a signal to which an organism responds.

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Every organism has a particular pattern if growth and development. During  development, a single fertilized egg divides again and again. As these cells divides, they differentiate, which means they begin to look different from on another and to perform different functions.

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Living things are based on a universal genetic code.

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Living things are based on a universal genetic code.

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All organisms store the complex information they need to live, grow, and reproduce in a genetic code written in a molecule called DNA. That information is copied and passed from present offspring. With a few minor variations , life"s genetic code is almost identical in every organism on Earth