What is the relationship between an organism's fundamental niche and its realized niche?
A) The fundamental niche of an organism is usually larger than its realized niche.
B) The realized niche of an organism is usually larger than its fundamental niche.
C) The fundamental niche of an organism is usually the same as its realized niche.
D) The fundamental niche of an organism usually depends on its realized niche.

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explanation: ill you out, join

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 

the missing space is phylum