The diagram illustrates a frog’s natural life cycle.
Overall, the life cycle comprises seven stages, starting with the fertilization of eggs, followed by their development into tadpoles, and culminating in fully grown amphibians.
In the initial phase, an adult frog lays eggs on seaweed, which then begin to take shape and develop into embryos. These embryos begin to elongate as they develop into tadpoles. At the next stage, their front legs start to emerge. This enables them to move freely through the water and avoid obstacles in their path.
Subsequently, the tadpoles further evolve, which is noticed by the pulmonary breathing and emergence of arms and legs. Their skin also starts to have dark green spots at this moment. After leaving the water, the creature becomes a tadpole frog. The tail is no more apparent and instead limbs significantly grow. In the final stage, the tadpole frog increases in size before transforming into a fully grown adult frog
