Here the energy transfer occurs between the gas that is being burned, and the fork that is placed in the flame. In this case the heat (energy) from the flame is being transferred to the fork.
42.28358 N 71.65106 W
Tortoise Shell Guinea Pig
Cavia porcellus
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In this example there is a energy transfer between the carrot that the guinea pig is eating and the guinea pig itself. This allows to supply the guinea pig with energy that it needs to survive and reproduce.
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