Multiple choice

The biomass of each succeeding trophic level is

  1. more than the one preceding it

  2. less than the one preceding it

  3. constantly fixed

  4. equal to the next trophic level

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In most stable terrestrial ecosystems, the biomass decreases at each higher trophic level because energy is lost as heat and through metabolic processes. This results in an upright pyramid of biomass where producers have the highest total mass.