What are the stages of the life span of AN organisms?

The life span of an organism typically includes several stages: embryonic development, juvenile or immature stage, adulthood, and senescence or old age. In the embryonic stage, the organism develops from a fertilized egg into a fully formed individual. The juvenile stage involves growth and maturation, leading to the adult stage where the organism is capable of reproduction. Finally, senescence marks the decline in physiological functions and ultimately leads to death.