Most trees, when they fall, can in fact be used in the rest of the ecosystem. They are able to become part of the overall ecosystem and immediately nurture other plant life. Some trees, in fact, keep living on the ground for some time after they fall. Depending on the way that they fall, their upper limbs—the ones facing the sun—can continue to collect good things from the air and from the soil. Eventually, their systems fail, as they are invaded by other species, and by that time, their cells are being used by other creatures.
