Moving energy through a food web utilizes the first and second laws of thermodynamics. Producers convert energy to biomass through the process of photosynthesis. This provides energy for the plant. This illustrates the __________ law of thermodynamics. Primary consumers eat plants as a source of food energy. However, only 10% of the energy at the producer level is available to the __________. The rest of the energy is used for metabolism or lost as __________.

a) Zeroth, consumer, heat
b) First, consumer, heat
c) Second, producer, work
d) Third, consumer, work