Question

Explai about various trophic level in an ecosystem? give a long answer.
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Answer 1

The various trophic level in an ecosystem is explained below:

To understand this question, let us first understand what a trophic level is?

• In a food chain, the position of an organism is represented by trophic levels.
• Generally, there are four trophic levels in an ecosystem because only 10℅ of the energy is transferred from one trophic level to the next trophic level. Hence, trophic levels are limited.

Various trophic levels in an ecosystem are-

• The first trophic level consists of autotrophs such as green plants and algae that can make their own food. They are also called producers.
• The second trophic level consists of herbivores such as cows, deer that cannot make their food and feed on plants. They are also called primary consumers.
• The third trophic level consists of carnivores such as foxes, frogs that cannot make their food and feed on primary consumers or herbivores. They are also called secondary consumers.
• The fourth trophic level consists of other carnivores such as snakes, wolves that cannot make their food and feed on secondary consumers. They are also called tertiary consumers.
• The fifth trophic level consists of apex predators such as lions, tigers that prey on the other carnivores.