Evolution Final Exam – Complete Study Guide & Revision Notes
Species that branched off earlier in a phylogenetic tree are more primitive
True
False - correct answer ✔✔False
(none of the currently living taxa are any more "primitive" or any more "advanced" than any of
the others)
Is the category we know as Fish a monophyletic group?
Yes because it includes only the most recent common ancestor and all of its descendants
Yes because all fish share the same derived characters, such as fins, gills and scales.
No because many characters that fish share are not derived from a common ancestor
No because it does not include only the most recent common ancestor and all of its
descendants - correct answer ✔✔No because it does not include only the most recent common
ancestor and all of its descendants (it is paraphyletic)
Which of the following pairs of organs are NOT homologous?
Bat wing - Seal flipper.
Fish eye - Dragon fly eye.
, Blood vessels in fish gills - Blood vessels in human lungs.
Human eye - Fish eye. - correct answer ✔✔Fish eye - Dragon fly eye.
How does artificial selection differ from natural selection?
The strength of selection is usually stronger.
It typically happens more rapidly.
The selection is goal directed.
Both (1) and (3).
All of the above.
None of the above. - correct answer ✔✔All of the above.
Why is a notochord an important adaptation for understanding the evolution of humans?
The development of a notochord occurred in early fish.
A notochord is a backbone.
A notochord is a characteristic of chordates.
Species that branched off earlier in a phylogenetic tree are more primitive
True
False - correct answer ✔✔False
(none of the currently living taxa are any more "primitive" or any more "advanced" than any of
the others)
Is the category we know as Fish a monophyletic group?
Yes because it includes only the most recent common ancestor and all of its descendants
Yes because all fish share the same derived characters, such as fins, gills and scales.
No because many characters that fish share are not derived from a common ancestor
No because it does not include only the most recent common ancestor and all of its
descendants - correct answer ✔✔No because it does not include only the most recent common
ancestor and all of its descendants (it is paraphyletic)
Which of the following pairs of organs are NOT homologous?
Bat wing - Seal flipper.
Fish eye - Dragon fly eye.
, Blood vessels in fish gills - Blood vessels in human lungs.
Human eye - Fish eye. - correct answer ✔✔Fish eye - Dragon fly eye.
How does artificial selection differ from natural selection?
The strength of selection is usually stronger.
It typically happens more rapidly.
The selection is goal directed.
Both (1) and (3).
All of the above.
None of the above. - correct answer ✔✔All of the above.
Why is a notochord an important adaptation for understanding the evolution of humans?
The development of a notochord occurred in early fish.
A notochord is a backbone.
A notochord is a characteristic of chordates.
