Answer:
Energy means to do some work. In case of biological point of view there are 2 major type of energy called as potential energy and chemical energy.
Step-by-step explanation:
Potential energy-
It is a type of mechanical and stored energy which is caused by its position and structure.Potential energy may be kinetic energy, thermal energy, chemical energy.
For example-
A stretch rubber band,increase body weight etc.
Chemical energy-
It is a type of potential energy where the energy is stored within their chemical bonds.
For example-
Coal and wood combustion coverts the chemical energy into heat and light energy.