In ecosystems, plants transform light energy from the sun into chemical energy when they make sugar. This sugar can then be consumed by other organisms to be used as building blocks for other molecules such as proteins and fats. Or it can be transformed into other forms of energy, such as kinetic energy when the organism moves.

Energy cannot be destroyed but moves from one state to another

Explanation:

In an ecosystem the dependence on energy is one of the main driving forces. Most animals and plants are always growing, changing location and moving and all these functions require energy. The energy after transformation from the sun, is referred to as biomass and the transfer of energy from one organism to another is called a food web.

The answer is:

D.  Matter and energy can change forms and locations in ecosystems.  

option c is the correct answer.