What is the term to describe features that are changed from an ancestral form

The term used to describe features that has been modified from an ancestral form is evolution. It is a biological change by which descendants come to differ from their ancestors. In addition, an individual inherits features called traits from its parents through genes and these genes can produce a new trait in their offspring.

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note: for words found inappropriate, i spelled them out in the phonetic alphabet in parenthesis, so take the first letter of each word to get the word i was trying to spell