Respuesta :
Answer:
Some of the energy is used for metabolism and the rest is released as heat energy.
Explanation:
Some energy is used for metabolism, in order to be used for the primary consumer, so it can be transferred to secondary consumers. Only 10% of the energy used for the primary consumers are transferred to the secondary consumers. If a primary consumer use all its energy and release that energy into heat, it can´t be used for metabolism, and therefore can´t be used by the secondary consumers.