Question

state the law which governs the energy flow in an ecosystem

Answer 1

All the input energy (food) changes in work ( growth/ metabolism) & heat released (body heat via respiration + perspiration + defection etc..)

Answer 2

All of nature is driven by energy. How this energy flows through the environment is important for understanding ecolgy.

It is governed by three laws:

Conservation of MassConservation of Energy (First Law of Thermodynamics)Second Law of Thermodynamics