Fungi could be found in a forest ecosystem. They feed on dead or decaying material for energy. They release nitrogen back into the soil in the form of ammonium nitrate, a nutrient that plants need for survival.
Clover plant: Mouse: Rattlesnake : Hawk: Fungi: Clover plant
A clover plant is eaten by a mouse. The mouse is eaten by a rattlesnake. A hawk eats the rattlesnake. The hawk eventually dies, and bacteria and fungi decompose the body, and they release ammonium nitrate into the soil to grow another clover plant.
Snails live primarily in the upper leaf litter of forests, old fields, and wetlands, but also in more disturbed habitats such as active gardens and fields, riverbanks, suburbs, and even cities. Those are the ecosystems they are found in. They can eat food from plant and animal sources. They return nutrients to the environment by being eaten by larger animals.
Pile of dead leaves: Snail: Thrush
Earthworms can be found in any ecosystem with moist soil and dead plant material. Earthworms eat dead plant material and return nutrients into the ecosystem by taking nutrients down through the soil closer to plant roots.
Pile of dead leaves: Earthworm: Blackbird: Sparrow hawk
Pillbugs live anywhere with moist soil and dead plants to eat, but prefer humid habitats. Pillbugs eat dead plant material and return nutrients to the soil by returning the organic material to the soil so it can be further digested into nutrients for growing plants. They're also able to remove toxic metals from the soil during the digestion process.
Dead plant material: Pillbug: Frog: Snake: Owl
I'm sorry this answer was 23 minutes late, but I only saw the question at 6:04. I hope you don't get an F, and I hope I answered the question correctly. I did my best, but science is not my forte. If you need me to add something, just comment.
