NEET BIOLOGY

Detailed explanation-1: -Notes: Omnivores constitute the highest trophic level in an ecosystem. Omnivores are tertiary consumers and feed on both plants and animals. Decomposers feed on all the trophic levels.

Detailed explanation-2: -Trophic level five consists of apex predators; these animals have no natural predators and are therefore at the top of the food chain. Decomposers or detritivores are organisms which consume dead plant and animal material, converting it into energy and nutrients that plants can use for effective growth.

Detailed explanation-3: -The trophic level above a quaternary consumer is a quinary consumer.

Detailed explanation-4: -A quaternary consumer is an animal that consumes at the very top of the food chain, after the primary consumer. These animals primarily prey on or eat animals that are lower on the food chain than they are, such as tertiary and secondary consumers.

Detailed explanation-5: -The first and lowest level contains the producers, green plants. The plants or their products are consumed by the second-level organisms-the herbivores, or plant eaters. At the third level, primary carnivores, or meat eaters, eat the herbivores; and at the fourth level, secondary carnivores eat the primary carnivores.