biodiversity

This term describes the complex web of life, emphasizing the richness and variety of biological entities. It carries a strong connotation of ecological health and stability, where higher variety is typically viewed as a positive indicator of a resilient environment. As an uncountable noun, it refers to a collective state or quality of an ecosystem. It does not take a plural form in standard usage and cannot be counted as individual units; instead, it is measured by indices or described using quantifiers like "high," "low," or "rich."