Animal wastes contain significant amounts of nitrogen (for example as urea) and these wastes and the remains of dead animals and plants can be used by decomposers such as bacteria as an energy source.
(Animal wastes; contain; significant amounts of nitrogen (for example as urea) (these wastes and the remains of dead animals and plants; can be used; by decomposers such as bacteria as an energy source)
Animal wastes these wastes and the remains of dead animals and plants
contain can be used
significant amounts of nitrogen (for example as urea
by decomposers such as bacteria as an energy source