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cycle of sexual reproduction. Living things maintain a stable inter- nal environment. All organisms need to keep their internal environment relatively stable, even when external conditions

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Page 1: cycle of sexual reproduction. Living things maintain a stable inter- nal environment. All organisms need to keep their internal environment relatively stable, even when external conditions
Page 2: cycle of sexual reproduction. Living things maintain a stable inter- nal environment. All organisms need to keep their internal environment relatively stable, even when external conditions