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In a model of the history of life, a strip of 60 cm… | StemPy Lab

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In a model of the history of life, a strip of 60 cm stands for 600 million years, and the right end is the present. A mark lies 17 cm from the right end. How many million years ago does the mark stand for?

BiologyMediumHigh School (11–12)Heredity and Evolution

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In a model of the history of life, a strip of 60 cm stands for 600 million years, and the right end is the present. A mark lies 17 cm from the right end. How many million years ago does the mark stand for?

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← The brain capacity of *Homo habilis* is given by NCERT as 650 to 800 cc. By what percentage is the upper end of the range larger than the lower end?Why could the reptiles live far from water, when the amphibians could not? →

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