Question

Define a food chain. Design a terrestrial food chain of four trophic levels.
If a pollutant enters at the producer level, the organisms of which trophic
level will have the maximum concentration of the pollutant in their
bodies ? What is this phenomenon called ?
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Answer 1

Answer:A food chain shows how each living thing gets food, and how nutrients and energy are passed from creature to creature. Food chains begin with plant-life, and end with animal-life. Some animals eat plants, some animals eat other animals. A simple food chain could start with grass, which is eaten by rabbits.

Grass → Grasshopper → frog → snake → peacock

Grass — Producer — trophic level.

Grasshopper — I Consumer  

(Herbivores) — II trophic level’.

Frog — II Consumer

(Carnivores) — II trophic level

Snake — III Consumer  

(Carnivores) — III trophic level

Peacock — IV Consumer  

(Carnivores) — V trophic level.

The pollutants are absorbed by plant from the soil and enter the food chain. Being non-biodegradable they accumulate progressively at, each trophic level. As human occupy the top level of any food chain, the maximum concentration of chemicals is found in our bodies.

This phenomenon is called biological magnification.

Explanation:

Answer 2

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Explanation:

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