Photosynthesis aims to create energy (in the form of carbohydrate) from the light energy from the sun. The organisms that use the photosynthesis mechanism are autotrophic because they make organic materials from inorganic materials.
Energy Pyrenees because it gives you representation to show which organisms form the lowest to the highest and which one contains the most Energy so it would help on how the relationship between organisms depending on the level of the ecosystem.