Final answer:
Animal droppings and farm yard manure play important roles in nutrient cycling and soil health in an ecosystem.
Step-by-step explanation:
In an ecosystem, animal droppings and farm yard manure play important roles in nutrient cycling and soil health. Animal droppings, such as the waste produced by herbivores, contain nutrients that can be broken down and recycled by decomposers like bacteria and fungi.
These nutrients are then made available for plants to take up and use for growth. Farm yard manure, on the other hand, is a mixture of animal manure and plant waste that can be applied to agricultural fields to improve soil fertility and structure. It provides essential nutrients, improves water retention, and promotes the growth of beneficial soil organisms.