Biodiversity: A Measure of Life's Variety The term 'biodiversity' encompasses three main levels: genetic diversity, species diversity, and ecosystem diversity.

生物多样性：生命多样性的衡量标准“生物多样性”一词涵盖三个主要层面：遗传多样性、物种多样性和生态系统多样性。

Ecosystem diversity covers the broad range of different habitats or ecosystems, each with its unique community of organisms and physical environment.

生态系统多样性涵盖了广泛的不同栖息地或生态系统，每个栖息地或生态系统都有其独特的生物群落和物理环境。