How many stars in the unvirse?
100 billion stars

200 trillion

500 trillion

500 infinty

1,000,000,000,000,000,000,000 (that's 1 billion trillion) stars in the observable universe.

is that good

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