What Is Life?
03/11/2013 10:40
People like to say, as if it were obvious, that life is hard to define. This is misleading. Life has properties that clearly distinguish it from everything else. First, every living thing is cellular. In other words, it is either a single-celled creature or a creature composed of many cells. Every cell is bounded by its own outer membrane and contains a full set of instructions necessary for its operation and reproduction. [Read more] ...
I am not going to answer this question — J. B. S. Haldane (1)
The units of life are cells — Lynn Margulis (2)
The units of life are cells — Lynn Margulis (2)
People like to say, as if it were obvious, that life is hard to define. This is misleading. Life has properties that clearly distinguish it from everything else. First, every living thing is cellular. In other words, it is either a single-celled creature or a creature composed of many cells. Every cell is bounded by its own outer membrane and contains a full set of instructions necessary for its operation and reproduction. [Read more] ...