Fill in the Blanks Fill in the blank - Energy FlowsOnline version Fill in the blank by Benjamin D Morgan 1 OMNIVORES NINETY START WASTE OVERLAPPING SECONDARY CHAIN FIRST TERTIARY TEN WEB SECOND TROPHIC A Food is a series of steps in an ecosystem in which organisms transfers energy and matter by eating and being eaten . However , a group of food chains connected together in an ecosystem is known as a Food . Producers are a possible to the food chain and are in the trophic level of an energy pyramid . Primary consumers eat the producers to get energy and is in the trophic level of the energy pyramid . consumers eat herbivores to get energy and is in the third trophic level of the energy pyramid . Finally , eating carnivores or to get energy and is in the fourth energy level are the consumers . The different feeding positions in a food chain or web are known as the levels . During this transaction only percent of energy is passed when one organism eats another in the next trophic level and percent is lost due to using energy for living , unusable heat loss , and .