Question

The __________ lost at each trophic level enters the environment as __________.

CO2, energy

O2, heat

heat, energy

energy, heat

Answer 1

energy, heat

Step-by-step explanation:

Only a part of the energy stored in a trophic level goes to the next level since the different organisms that process the energy consume it to perform their vital processes. The rest of the energy is released into the environment in the form of heat: