Final answer:
Creationists generally object to evolution when it involves the addition of an apomorphy, but accept minor modifications of a plesiomorphy.
Step-by-step explanation:
The question is asking about Creationists' objections to evolution in relation to the minor modifications of a plesiomorphy and the addition of an apomorphy.
Creationists generally object to evolution when it involves the addition of an apomorphy. An apomorphy is a derived characteristic that distinguishes a group of organisms and is not present in their common ancestor.
On the other hand, minor modifications of a plesiomorphy, which refers to ancestral traits, are generally accepted by Creationists as they are seen as variations within a kind or species.