i. The existence of the ecosystem depends on the survival of the organisms in an ecosystem.
ii. All the organisms require energy for their growth, development and to reproduce.
iii. They get energy from the food they eat. In any ecosystem plants are producers, they make food with the help of sunlight.
iv. Some animals eat plants such as goat deer, horse, zebra and some animals eat other animals such as tiger eats zebra or deer.
v. Microorganisms such as bacteria and fungi feed on a dead and decaying matter which helps in recycling of nutrients in the ecosystem. In this way, the diversity of organisms enrich the ecosystem.
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