In the case of food webs, we have that with each new level less and less energy passes, being producers the level with the most energy, meanwhile the last level apex predator, in this case, the third level of heterotrophs is te level where less energy arrives, now each food web is different nonetheless it is commonly used the 10% rule, that is to say, that to each new level only the 10 % of energy passes, so in this case, following this rule the closest match for all numbers would be 0.10 as this is 10%.
