The illustration depicts the information about natural loop of frog's life. Overall, there are four main stages which are occurring naturally, beginning with eggs to be the adult frog and the whole process begins again.
Initially, the eggs which are laid on the water surface come to form an embryo. After development period, an embryo becomes a tadpole, a baby frog. The tadpole has long tail and lives in the water by gill breathing.
Turning to the next step, the tadpole begins to change. It starts to grow hind legs, which are soon followed with forelegs. Tadpole's tail becomes smaller and it starts breathing with pulmonary, and preparing the frog for its life on land. Over the time, the tadpole has become even more frog-like. The tail becomes much smaller, and the legs grow. After that, tadpole frog becomes adult frog where the legs are developed and the tail has vanished.
Initially, the eggs which are laid on the water surface come to form an embryo. After development period, an embryo becomes a tadpole, a baby frog. The tadpole has long tail and lives in the water by gill breathing.
Turning to the next step, the tadpole begins to change. It starts to grow hind legs, which are soon followed with forelegs. Tadpole's tail becomes smaller and it starts breathing with pulmonary, and preparing the frog for its life on land. Over the time, the tadpole has become even more frog-like. The tail becomes much smaller, and the legs grow. After that, tadpole frog becomes adult frog where the legs are developed and the tail has vanished.
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