What factor contributes to ecosystem function according to the significance of biodiversity?

• A. Clarity of water sources
• B. Variety of species
• C. Extent of urbanization
• D. Soil composition

Answer: (B)

Biodiversity, defined as the variety of species within an ecosystem, plays a crucial role in maintaining ecosystem functions. A diverse array of species contributes to ecological stability and resilience, allowing ecosystems to better withstand disturbances such as climate change, pollution, and habitat loss. Each species performs specific roles in the ecosystem, including nutrient cycling, pollination, and predation. This interconnectedness enhances productivity and ensures the ecological processes necessary for supporting life, including humans.

While the clarity of water sources, extent of urbanization, and soil composition can influence ecosystem dynamics, they do not inherently reflect the biodiversity present. Clarity of water can be a result of various factors, including the presence of aquatic plants and sediments, but it is not a direct measure of species variety. Urbanization typically leads to habitat destruction, which can diminish biodiversity rather than contribute to it. Soil composition relates to nutrient availability and physical support for plant life, yet it is the variety of organisms that utilize and interact with that soil which ultimately sustains ecological health. Thus, the variety of species is the key contributing factor to ecosystem function as it influences all other elements of the ecosystem.