Question

What does a pyramid of numbers represent?

विकल्प

• The relative number of individuals per unit area at different trophic levels

• The biomass per unit area at different trophic levels

• The amount of accumulated energy per unit area at different trophic levels

• The standing crop of phytoplankton and zooplankton only

Answer 1

A pyramid of numbers measures the relative number of individuals per unit area. It compares the number of organisms at different trophic levels.