|
A somewhat stricter requirement is the presence of these elements in molecules that can be used as ready-made building blocks for life, just as early Earth probably had an organic soup of amino acids and other complex molecules building blocks of live 生命基石 The set of elements (or their relative proportions) used by life based on some other element might be somewhat different from that used by carbon-based life on Earth somewhat 稍微，有点 以其他元素为基础的生命所使用的元素集合(或它们的相对比例)可能与地球上碳基生命所使用的元素有些不同。 even if we allow for life very different from life on Earth 即使我们承认生与地球上会截然不同的生命 The nature of solar-system formation 太阳系形成的本质 a trace amount 微量 Thus, a first requirement for life might be the presence of most or all of the elements used by life. |
|
|
