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This test consists of 15 multiple choice questions and 5 short answer questions.

Multiple Choice Questions

1. Why do hybrids tend to display little variation?
(a) There is no natural selection with hybrids.
(b) The parents are the same.
(c) The parents are very close in characteristics.
(d) Because of genetic defects.

2. Where is much of the evidence proving natural selection found?
(a) Ancient generations.
(b) Geological records.
(c) New generations.
(d) Fossil records.

3. What terms refer to parts that are similar in structure?
(a) Identical parts.
(b) Homologous parts.
(c) Heterogeneous parts.
(d) Homogeneous parts.

4. For natural selection to be true, what could be suggested about transitional forms?
(a) Amount of extinct species should be large.
(b) There should be no transitional forms.
(c) Transitional forms should be seen in all species.
(d) Amount of extinct species should be small.

5. What species of bees builds inefficient hives?
(a) Hive-bees.
(b) Yellow jackets.
(c) Bumblebees.
(d) Honeybees.

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

7. What can instinct be compared with?
(a) Habit.
(b) Life force.
(c) Nature.
(d) Variation.

8. If natural selection is accepted, what is rejected?
(a) Variations must be subjective.
(b) All differences must be different species.
(c) There is only artificial selection.
(d) Species were created independently.

9. What is the major limiting factor to migration?
(a) Stamina.
(b) Land mass.
(c) Oceans.
(d) Lakes.

10. What do scientists find throughout the fossil record?
(a) New species.
(b) Life.
(c) Flaws in nature.
(d) Evolution.

11. What is one variation found in birds that migrate?
(a) Distance of migration.
(b) Duration of migration.
(c) Location of migration.
(d) Timing of migration.

12. What do naturalists say about the situation of hybrids resembling their parents?
(a) Natural selection can explain this resemblance.
(b) There is no explanation.
(c) Natural selection cannot explain this resemblance.
(d) Artificial selection explains this.

13. Why are the same species of freshwater fish typically NOT found in different countries?
(a) They are separated by large bodies of salt water.
(b) Fish do not descend from a common ancestor.
(c) Countries have different environments.
(d) Fish do not migrate.

14. To what degree do hybrids resemble one parent?
(a) No resemblance.
(b) Moderate degrees.
(c) Extreme degrees.
(d) Small degrees.

15. How do scientists explain the presence of the same species in different locations?
(a) Natural selection.
(b) Single species.
(c) Adaptation.
(d) Migration.

Short Answer Questions

1. What species of bee builds the most efficient hives?

2. Why might a hybrid species NOT survive birth?

3. What is on the seeds of plants that helps them reproduce?

4. What happens to the offspring when two of the same distinct species interbreed?

5. What may occur if one organism changes dramatically over time?

(see the answer keys)

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