5. Is the Class listed as Fishes (Pisces) in older textbooks considered a monophyletic group?:

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5. Is the Class listed as Fishes (Pisces) in older textbooks considered a monophyletic
group?:
A.
B.
C.
D.
E.
Yes, because it includes only the most
recent common ancestor and all of its
descendants
Yes, because all fish share the same
characters, such as fins, gills and scales.
No, because lobe-finned fishes are more
closely related to tetrapods than they are
to the ray-finned fishes, jawless fishes and
cartilaginous fishes.
No, because many characters that Class
Fishes share were not derived from a
shared common ancestor.
C and D.
Transcribed Image Text:5. Is the Class listed as Fishes (Pisces) in older textbooks considered a monophyletic group?: A. B. C. D. E. Yes, because it includes only the most recent common ancestor and all of its descendants Yes, because all fish share the same characters, such as fins, gills and scales. No, because lobe-finned fishes are more closely related to tetrapods than they are to the ray-finned fishes, jawless fishes and cartilaginous fishes. No, because many characters that Class Fishes share were not derived from a shared common ancestor. C and D.
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