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This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

Multiple Choice Questions

1. How do some scientists demonstrate the differences between species and variations?
(a) Scientific method.
(b) Natural breeding.
(c) Through hybrids.
(d) Fossil records.

2. What is correlated with a difference in creatures that inhabit a region?
(a) The barriers of that region.
(b) Food supply.
(c) Migration patterns.
(d) Mating potential.

3. How do breeders know if the traits they breed into cows are useful?
(a) They appear at birth.
(b) They appear in adulthood.
(c) They appear prior to birth.
(d) They appear in late childhood.

4. What does Darwin suggest that natural selection cannot do independently?
(a) Create new species.
(b) Eliminate dysfunctional traits.
(c) Cause extinction.
(d) Produce the same species twice.

5. How is the American cuckoo different from the European cuckoo?
(a) The American cuckoo eats offspring.
(b) The American cuckoo raises its own offspring.
(c) The American cuckoo buries offspring.
(d) The American cuckoo raises others' offspring.

Short Answer Questions

1. Why do hybrids tend to display little variation?

2. What does the fossil record suggest about species that go extinct?

3. What is one of the most serious objections to natural selection?

4. What happens to life forms that do NOT adapt?

5. What do commonalities of species found on islands say about species in general?

Short Essay Questions

1. How does less competition affect natural selection?

2. Why do scientists have difficulty determining the effects of two distinct species breeding?

3. What are three facts that can be explained by natural selection as discussed in Chapter 11?

4. What is a cause for infertility as discussed in Chapter 8: Hybridism?

5. Why can't similarities in organ structure of different species be explained as being created individually?

6. How does Darwin explain similarities in embryos?

7. What does Darwin suggest about the fossil records of trilobites?

8. How can naturalists determine if land masses were once connected?

9. How do physical barriers correlate with differences in creatures that inhabit a region?

10. Why can't climate account for differences in organisms from one region to the next?

(see the answer keys)

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