Evolutionary Relationships

Question 6 • Science 8

Which best describes the two types of shared characteristics?

Answer

1 - characteristics that remain in the common ancestor and the modern organism2 - characteristics that are new and have been modified from what was found in the common ancestor

1 - characteristics that are new in the common ancestor and the modern organism2 - characteristics that have been modified from what was found in the common ancestor

1 - characteristics that have been modified in the common ancestor but not in the modern organism2 - characteristics that are new in both the common ancestor and the modern organism

1 - characteristics that remain in the common ancestor and the modern organism2 - characteristics that are new in both the common ancestor and the modern organism

Explanation

One type is an ancestral characteristic: it was present in the common ancestor and remains in the modern organism. The other is a derived characteristic: it is new or modified compared with what was present in the common ancestor. Choice A describes these two types.

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