Bacteria, Archaea, and Eukaryota are the three
of life on Earth.

Domains

Explanation:

The origin of life is on the bacteria branch, archaea and eukarya evolve independently of the main line.

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg