Bacteria and fungi fulfill which role in an ecosystem?

• A. Producers
• B. Primary consumers
• C. Secondary consumers
• D. Decomposers

Answer: (D)

Verified step by step guidance

1. Understand the role of decomposers in an ecosystem: Decomposers are organisms that break down dead or decaying organisms, recycling nutrients back into the ecosystem.
2. Identify the types of organisms that act as decomposers: Bacteria and fungi are the primary decomposers in most ecosystems.
3. Differentiate decomposers from other roles in the ecosystem: Producers, such as plants, create their own food through photosynthesis. Consumers, such as animals, eat other organisms for energy. Decomposers, however, obtain energy by breaking down organic matter.
4. Consider the importance of decomposers: They play a crucial role in nutrient cycling, helping to maintain the balance of ecosystems by breaking down complex organic materials into simpler substances.
5. Recognize the ecological impact: Without decomposers like bacteria and fungi, ecosystems would accumulate dead matter, and nutrients would not be recycled efficiently, disrupting the balance of the ecosystem.