Question

The ecosystem exists in a state of 'balance'. Supposing one of the heterotrophs, say the rabbit, multiplies, and increases in number suddenly, then

• A. Epidemics will break out in the rabbits and kill all of them
• B. Rabbits will starts eating each other
• C. The balance will be permanently upset because the rabbits will eat the grass in the system and die of starvation
• D. The balance will be restored by an increase in the wolf population

Answer 1

Answer: (D)

Rabbits are the primary consumers or heterotrophs within the ecosystem. If the population of rabbit increases suddenly, then the balance within the ecosystem will be disturbed. The ecosystem exists in a state of 'balance'. Thus, the population of rabbit can be controlled by an increase in the wolf population. Wolves are the secondary consumers or carnivores that feed on rabbits and thereby restore the balance within the ecosystem.

So, the correct answer is 'The balance will be restored by an increase in the wolf population'.