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Extinct vs. Extant


The cladogram shown below proposes an evolutionary relationship among Species A-C.

Which of the following statements BEST describes the origins of Species A?

Created for Albert.io. Copyright 2016. All rights reserved.


The shortened arm of Species A suggests that it is an extant (archaic, but in existence) species that has retained traits of its ancestor.


Species A is an extinct species that shared a common ancestor with Species B and Species C.


Species A does not share traits with Species B or Species C.


Species A has evolved from an ancestor that also gave rise to extinct Species B and Species C.