Question

An inverted pyramid of number and an inverted pyramid of biomass are respectively seen in

• A. Grassland Tree ecosystem
• B. Sea and Tree ecosystem
• C. Tree and Sea ecosystem
• D. Sea and Grassland ecosystem
• E. Tree and Grassland ecosystem

Answer 1

Answer: (C)

Tree and Sea ecosystem

Pyramid of number indicates the number of individuals at each trophic level. The pyramid of number is inverted in tree ecosystem. In this, the the first trophic level contains least number of trees. The insects feeding on primary producer occupy second trophic level. Their number is higher than first trophic level. The maximum number of individuals are present at the top trophic level. In pyramid of biomass indicates the total mass at each trophic level. The pyramid of biomass is inverted in sea ecosystem. The first trophic level contains minimum biomass followed by second trophic level followed third trophic level. The top trophic level contains maximum biomass.

Thus, the correct answer is 'Tree and Sea ecosystem.'