Examples are the development of a newly hatched chick into a fully grown hen, a human infant into an adult, a novice musician to a concert performer, a bright teenager into an expert mathematician, and the learning of languages or sporting skills.
(Examples; are; the development of a newly hatched chick into a fully grown hen, a human infant into an adult)
Examples
are
the development of a newly hatched chick into a fully grown hen, a human infant into an adult