Chap. 25 - PP/Quiz Flashcards
In the Geologic Record, which is the oldest period listed here?
Cambrian
Shared DNA sequences, especially in non-coding regions, is used as an evidence of common ancestry
True
If two species both have similar pseudogenes, it might not so much indicate a close common ancestor as the effect of natural selection of those similar pseudogenes actually do have an advantageous function
True
Does the sharing of unique traits suggest common ancestry?
Yes
Would a jellyfish or shell be least likely to fossilize?
Jellyfish
You find a fly trapped in amber. This is an example of what kind of fossil?
Whole organisms
Is a fossilized footprint an impression?
Yes
Does oxygen help the formation of fossils?
No
Where are fossils found?
Sedimentary rock
What disappeared at the end of the Mesozoic and what appeared before the beginning of the Cenozoic?
Dinosaurs, flowering plants