Question

which one of the following is the regular necessity of an ecosystem multiple choice​

Answer 1

Answer:

the answer in the above the picture

Answer 2

Explanation:

For a pond ecosystem, the pyramid of numbers is upright because the maximum number of individuals occur at the producer level and top carnivores are fewer in number. The pyramid of mass for a pond ecosystem is inverted because the biomass of fishes is greater than that of phytoplankton. Pyramid of energy is always upright because energy is dissipated as it passes to higher trophic levels.

So, the correct answer is option D