IELTS READING S43AT3

HOW DOES THE BIOLOGICAL CLOCK TICK?

A. Our life span is restricted. Everyone accepts this as ‘biologically’ obvious. ‘Nothing lives forever!’ However, in this statement, we think of artificially produced, technical objects, products which are subjected to natural wear and tear during use. This leads to the result that at some time or other the object stops working and is unusable (‘death’ in the biological sense). Q37 But are the wear and tear and loss of function of technical objects and the death of living organisms really similar or comparable.

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