A student wants to learn how plants and animals interact with one another in an ocean habitat. Which of Earth's spheres should the student study the most? the geosphere
the atmosphere
the hydrosphere
the biosphere

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 

69 is the correct math for the amino acids