Question

David Tilmans’s long–term ecosystem experiments using outdoor plots showed that -

• A. Increased diversity contributed to higher productivity
• B. Increased diversity contributed to lower productivity
• C. Increased diversity have no impact on productivity
• D. Increased diversity have unpredictable impact on productivity

Answer 1

The correct option is A Increased diversity contributed to higher productivity

David Tilmans long-term ecosystem experiments using outdoor plots found that plots with more species showed less year-to-year variation in total biomass. He also showed that in his experiments increased diversity contributed to higher productivity.
So, the correct answer is option -b.