Whether you are illustrating simple recycling steps, straightforward systems such as the water cycle, or more complicated biological sequences such as all of the developmental stages from egg to tadpole to adult frog, use one of these blank cycle templates to keep things neat and tidy. You can choose from either circular shapes or rounded rectangle shapes, depending on whether you are presenting images or text (or a combination of the two).
Everything eats and is eaten by something else. It's the circle of life. Someone should make a song about that.