Ageing

Ageing

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I INTRODUCTION Ageing in biology, the combination of changes in an organism that appear to occur inevitably and irreversibly with the passage of time, eventually

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Life Span

Life Span

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I INTRODUCTION Life Span, the length of time that embraces all the events of an organism’s life, from conception to death. Nearly all multicellular organisms

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Life

Life

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Life, a term used to summarize the characteristic activities of all organisms—from cyanobacteria to plants and animals. The essence of life is a reproduction, the

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