Respuesta :
According to the 10% law of the ecosystem, human will have 30 Joules of energy out of 3000 joules from apple. Thus option B is correct.
What is the 10% law of the ecosystem?
In the food chain, at each trophic level, 90% of the energy from food is used up in metabolism or released as heat while only 10% is transferred to the next trophic level.
So 10% of 3000 joules of energy from an apple will be transferred to the pig which is 300 joules and the pig will give 10% of 300 joules to the human which is 30 Joules. So option B is correct.
Learn more about the food chain, here:
https://brainly.com/question/16065961
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