Why Plants are called autographs and animals are called heterotrophs?

Plants are called autotrophs because they can produce their own food through photosynthesis, using sunlight, carbon dioxide, and water to create energy in the form of glucose. In contrast, animals are termed heterotrophs because they cannot synthesize their own food and must obtain energy by consuming other organisms, whether plants or other animals. This distinction highlights the different ways in which these two groups obtain energy to sustain their life processes.