NCERT Solution for Class 10 Science Chapter 15
Our Environment,
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Exercises Questions
Page No-265
Questions No-4
What will happen if we kill all the organisms in one trophic level?
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If all the organisms in one trophic level are killed, it would disrupt the entire ecosystem’s balance. Each trophic level in an ecosystem represents a feeding level, with organisms occupying different positions in the food chain.
If one trophic level is eliminated, it can have cascading effects on the entire food web. The population of organisms in the next trophic level that relied on the now-eliminated organisms as a food source would be negatively impacted. This can lead to a domino effect, affecting multiple trophic levels and potentially causing the collapse of the ecosystem.
In essence, the interconnected nature of ecosystems means that the removal of organisms from any trophic level can have widespread and often unpredictable consequences on the stability and functioning of the ecosystem. It’s a delicate balance that nature maintains!
If we kill all the organisms in one trophic level then transfer of food and energy to next level will stop.
For eg.
Plants–> Rabbit–> Wolf–> Tiger
If, in the above food chain, we kill the grasshoppers or Trophic level II organisms then transfer of energy from plants (Trophic level I) to snake (Trophic level III) will stop.
The food chain would end and ecological balance would be affected.
1. If the herbivores are killed, then the carnivores would not be able to get food and would die.
2. If carnivores are killed, then the population of herbivores would increase to unsustainable level.
3. If producers are killed, then the nutrient cycle in that area would not be completed.
If we kill all the organisms in one trophic level, the transfer of food energy to the next trophic level will stop. This will cause a break in the food chain resulting in ecosystem imbalance. As a result, the organisms of the higher trophic level will also die, while the individuals of the lower trophic level will exhibit enormous growth in their population. Both the conditions will result in ecological upset.
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