What happen to the energy that was not passed on to the next tropic
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The energy that was not passed on the next tropic level is lost as heat

Explanation:

In an ecosystem flow of energy occur from one tropic level to the next one as the organism of one tropic level eats another organism belongs to the tropic level that is lower from that of previous one.

                    The 10% of total energy of one tropic level is passed to the next tropic level the rest of the energy is lost as heat in the environment.

they dont have any evidence

answer: b

coz red blood cells marrow and circulates the body for 120 days.