Life Has A History Post-test
9 Questions
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This quiz is timed and your grade will be recorded. You will have 12 minutes to take this quiz and you get one and only one attempt, so be sure you are ready before you begin.
Questions and Answers
- 1.Cladograms are diagrams that show us
- A.
How organisms are related to one another
- B.
Which group is missing a common ancestor
- C.
Which group evolved first
- 2.Extinction is common
- A.
True
- B.
False
- 3.Thousands of years passed between the extinction of dinosaurs and the appearance of the first humans
- A.
True
- B.
False
- 4.Evolution can only happen if there are no variations within a species.
- A.
True
- B.
False
- 5.Of all the species that have ever lived on this planet, how many have gone extinct?
- A.
- B.
Between 30% and 50%
- C.
Between 60% and 85%
- D.
>90%
- 6.Natural selection is an important mechanism for evolution. If there is a change in the environment, which of the following statements is correct:
- A.
Those organisms that are the strongest will survive and reproduce.
- B.
Individual organisms will evolve in order to survive and reproduce.
- C.
Those organisms that have features that can take advantage of the environmental change will survive and reproduce.
- 7.Name three kinds of fossils other than bones and teeth.
- 8.
- 9.Dinosaurs existed on earth for _________ millions of years before becoming extinct.
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