Green plants are autotrophic, meaning that they do not obtain food from other living things but instead create their own food by photosynthesis. Green plants are autotrophic, meaning that they do not obtain food from other living things but instead create their own food by photosynthesis. Green plants are autotrophic, meaning that they do not obtain food from other living things but instead create their own food by photosynthesis. Green plants are autotrophic, meaning that they do not obtain food from other living things but instead create their own food by photosynthesis. Green plants are autotrophic, meaning that they do not obtain food from other living things but instead create their own food by photosynthesis.