The name of the heterocycle below is: 
Definitions:
Fraternal Twins
Twins that develop from two different eggs fertilized by two different sperm, genetically as similar as regular siblings.
Oocytes
Female germ cells or eggs that are in various stages of development, essential for reproduction and fertilization.
Puberty
Series of events that transform a child into a sexually mature adult; involves an increase in the secretion of GnRH.
Adolescence
The phase of life between childhood and adulthood, characterized by physical, psychological, and social changes.
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