Question

Eltonian pyramids of numbers are upright in which one of the following ecosystems?

• A. Grassland
• B. Tree
• C. Pond
• D. Both A and C

Answer 1

The correct option is D Both A and C

Ecological pyramids were developed by Charles Elton (1927) and are, therefore, also called as Eltonian pyramids. In most ecosystems, all the pyramids, of number or of energy or biomass are upright. The pyramid of number in a tree ecosystem is inverted. The pyramids of grassland and pond are upright.

Thus, the correct answer is option D.