Which of the following organisms is primarily known as a decomposer in ecosystems?

• A. Mushroom
• B. Algae
• C. Oak tree
• D. Grasshopper

Answer: (A)

Verified step by step guidance

1. Understand the role of decomposers in ecosystems: Decomposers are organisms that break down dead or decaying organic matter, recycling nutrients back into the ecosystem.
2. Identify common decomposers: Fungi, bacteria, and certain insects are typical decomposers. They play a crucial role in nutrient cycling by decomposing organic material.
3. Examine the options provided: Mushroom, Algae, Oak tree, Grasshopper.
4. Recognize that mushrooms are fungi: Fungi are well-known decomposers, breaking down complex organic substances into simpler compounds.
5. Conclude that mushrooms fit the role of decomposers: Given their function in ecosystems, mushrooms are primarily known as decomposers, unlike algae, oak trees, or grasshoppers.