All living things are found in this zone. The term ecosystem reflects the total relatedness of nature. There is no line separating biotic and abiotic, water and air. Water, minerals, and energy-supplying materials are in constant circulation. All of these things flow in and out of animal bodies, plant bodies, lakes, and streams.
Solar radiation is the ultimate source of energy for all organisms.
Plants utilize sunlight, chlorophyll, water, nutrients, and carbon dioxide to manufacture glucose and release oxygen. We call plants primary producers. Animals consume these plants. We call these consumers. Another name for plant eaters is herbivore.