Ashark eats a penguin that has recently been feeding on some krill. the penguin has 100 joules worth of energy, but the shark ultimately gains only about 10 joules. where does the rest of the energy go? it is destroyed and cannot be recovered. it was used by the penguin as it tried to get away from the shark. it is used for cell functions or transformed to heat energy. it reverts back to the krill that the penguin ate.

Option C, It is used for cell functions or transformed to heat energy

Explanation:

In an ecosystem, the energy obtained by an organism I by consuming any other organism II is just the 10% of the total energy contained with in organism II. 90% of the energy of the organism is used by the organism itself to carry out various cellular metabolic processed and to provide energy for all other physical processed with in the body. Therefore, when a shark eats a penguin, it only gets 10 joules of energy (which is equal to 10% of total energy contained within the penguin)

Hence, option C is the correct answer.

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