Human being function at three tropic level ... except producer .... They are primary consumer when they take vegetables .... they are secondary consumer when they take meat .... they are tertiary consumer when they take salmon ....

Human Beings and Tropic Levels in a Food Chain

Introduction:
In a food chain, organisms are categorized into different trophic levels based on their feeding relationships. These trophic levels represent the transfer of energy and nutrients from one organism to another. As human beings are a part of the ecosystem, they also have a specific tropic level.

Explanation:
1. Primary producers:
- Primary producers, also known as autotrophs, are the first trophic level in a food chain.
- They are able to produce their own food through photosynthesis or chemosynthesis.
- Examples include plants, algae, and some bacteria.
- Human beings do not function as primary producers in a food chain.

2. Primary consumers:
- Primary consumers, also known as herbivores, are the second trophic level in a food chain.
- They obtain their energy by consuming primary producers.
- Examples include grazing animals like cows, sheep, and rabbits.
- Human beings can function as primary consumers when they consume plant-based foods.

3. Secondary consumers:
- Secondary consumers are the third trophic level in a food chain.
- They obtain their energy by consuming primary consumers.
- Examples include carnivores that feed on herbivores, such as lions, wolves, and snakes.
- Human beings can function as secondary consumers when they consume meat.

4. Tertiary consumers:
- Tertiary consumers are the fourth trophic level in a food chain.
- They obtain their energy by consuming other carnivores.
- Examples include top predators like apex predators or humans who consume other carnivores.
- Human beings can function as tertiary consumers when they consume animals that are higher up in the food chain.

Conclusion:
In conclusion, human beings can function at multiple trophic levels in a food chain. Depending on their diet, they can be categorized as primary consumers when consuming plant-based foods, secondary consumers when consuming meat, and even tertiary consumers when consuming animals higher up in the food chain. It is important to note that the specific tropic level of human beings may vary depending on individual dietary choices and the complexity of the food web in a given ecosystem.