Maria wanted to grow a fern in her backyard

so what's the question asking? does she want to know how much? or the necessary items?

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.

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