Final answer:
d. When a large windstorm knocks over trees in a forest, it leads to changes in the composition of decomposer organisms.
Step-by-step explanation:
The correct answer to the question is D) Changes in the composition of decomposer organisms.
When a large windstorm knocks over many trees in a forest, it leads to changes in the composition of decomposer organisms. Decomposer organisms, such as fungi and bacteria, play a crucial role in breaking down the dead organic matter, including fallen trees, and recycling the nutrients back into the ecosystem.
When trees fall down, new organic matter becomes available for decomposition, leading to changes in the types and abundance of decomposer organisms in the forest.