A glance at the pictorial diagram provided reveals the natural life cycle of frogs in a lake without any human intervention. It interesting to note that linear process has 11 steps.
The process commences with eggs. The step after this is embryo which is moved to tadpoles clinging to water plant. At the same time water-plant is done, then start external gills for breathing. When external gills has done, tail keeps on growing is able to start. The next 3 steps are included to appear legs and it starts form hindlegs. Then when hindlegs is done to produce front legs, at the same time frog live from food stored in the tail. After front legs appear, tils becomes shorter and as a result appear young frog. As a result of this long process, an adult frog appears.
Overall, this diafram is cyclical and eggs can appear from a large frog.
