A negatively charged rod is placed near two neutral metal spheres, as shown below.
Which statement describes the charging method
shown?
O The spheres are charged through friction,
O The spheres develop the same charge.
O Electrons move from the rod to Sphere A.
O Electrons move from Sphere A to Sphere B.
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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 

answerbecause the joint is relatively unstable and can easily dislocate