What is the life cycle of animal species

The life cycle of an animal is the stages that it goes through on its way to adulthood. Mammals, reptiles, amphibians, birds, fish, insects and other invertebrates--they each have their own unique way of reproducing life. Each animal has its own uneque life cycle. Surprisingly, only about 3% of all animal species give birth as part of their life cycle.

Explanation:

i think it is true in my reasonment ..

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

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