Question

Explain how a disease killing the primary consumer in a food chain could wipe out the entire food chain and thereby affect all of the population in that chain. The primary consumer is the organism that eats the plants at the bottom of the food chain.

Answer 1

So, if the primary consumers all will become extinct, the producers will not be eaten at all. Hence, producers will become overpopulated in that ecosystem and will remove all the key nutrients from the soil by reproducing in abundance. There will be no food available for the secondary consumers, so they will die.