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explain the definition of the term "heterochrony"
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heterochrony is the process in which the rates of developmental events are altered among different individuals within a species. this results in morphological changes in the form of ontogeny, or the process from embryo to adult. it is often divided into three categories: paedomorphism, where juvenile characteristics are retained into adulthood, neoteny, where the rate of development slows and fewer structures are lost, and progenesis, where an adult trait develops earlier in ontogeny.
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