International Operations works with the Department of Homeland Security and other U.S. agencies to vet participants in International Visitors Program events nationwide.
Life cycle. Life cycle means the stages a living thing goes through during its life. In some cases the process is slow, and the changes are gradual. Humans have various steps during their lives, such as zygote, embryo, child and adult. The change from child to adult is slow and continuous.
1. The course of developmental changes through which an organism passes from its inception through the stage at which it reproduces. 2. A progression through a series of differing stages of development: the life cycle of a star. 3. The span of a product's existence from its initial development through the period of marketing and active use to eventual obsolescence.