Which term measures the variety of life in a given environment?

Which term measures the variety of life in a given environment?

• A. Endemic species
• B. Species richness
• C. Biodiversity
• D. Population size

Answer: (C)

Biodiversity is the overarching measure of life variety in an environment. It captures the total variety of life forms, including the number of species (species richness), how those species are distributed (evenness), genetic diversity within species, and the variety of ecosystems. Because biodiversity combines these different aspects, it best represents how diverse a habitat is. Endemic species describes species that are unique to a particular location, which tells you about restricted distribution, not overall variety. Population size tells you how many individuals exist, not how many different species or life forms are present. Species richness, while important, is only one part of biodiversity—the total concept that includes abundance, genetic differences, and ecological relationships.

Biodiversity is the overarching measure of life variety in an environment. It captures the total variety of life forms, including the number of species (species richness), how those species are distributed (evenness), genetic diversity within species, and the variety of ecosystems. Because biodiversity combines these different aspects, it best represents how diverse a habitat is.

Endemic species describes species that are unique to a particular location, which tells you about restricted distribution, not overall variety. Population size tells you how many individuals exist, not how many different species or life forms are present. Species richness, while important, is only one part of biodiversity—the total concept that includes abundance, genetic differences, and ecological relationships.