Based on the food chain below, if a bald eagle acquires 50 kg of energy, how much energy did the herbivorous duck get from the aquatic vegetation?

aquatic vegetation - - >herbivorous duck - - > bivalves - - > sea ducks - - >bald eagle

I know its 50,000 kg but how is the division worked down?

50,000 x 0.10 = 5,000J

10 percent rule

Food chain refers to a process cycle from producer to consumer to decomposer.

Plants - herbivores - omnivores - carnivores Start - > Plants - > herbivore insect - > spiders - > small bird - > Snake - > hawk - > fox - > lion - > when died the body will be eaten by hyena-> when hyena died - > body get decompose and be eaten by worms and the rest will be plant’s fertilizer.

The process of the food chain will then again takes place over and over again.