How do plants obtain energy? what do we call organisms that get energy this way?

Instead of taking in oxygen and breathing out carbon dioxide like animals do, plants take in carbon dioxide from the atmosphere. Plantsabsorb water from the ground up through their roots. During photosynthesis, the energy from the sun splits the water molecules into hydrogen and oxygen,

An autotroph is an organism that canproduce its own food using light, water, carbon dioxide, or other chemicals.

you call them autotrophs produce their own food, they are sometimes called producers. Plants are the most familiar type of autotroph, but there aremany different kinds of autotrophicorganisms.