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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 2: Variation Under Nature.

Multiple Choice Questions

1. What is likely to NOT affect variations that are consistent among individuals?
(a) Domestication.
(b) Competition.
(c) External factors.
(d) Natural selection.

2. What is unique about variation in polymorphic species?
(a) Dependent on external factors.
(b) All invertibrates.
(c) Not dependent on external factors.
(d) Not dependent on internal factors.

3. When is the only time a rational conclusion can be reached on a theory?
(a) After a committee discussion and agreement.
(b) When one side comes up with more proof.
(c) When both sides have been considered.
(d) You can never draw a conclusion in science.

4. What do naturalists connect with species that have two or three variations?
(a) Future generations.
(b) Past generations.
(c) Intermediate generations.
(d) Fossil records.

5. Which term refers to a type of variation that is seen in most or all groups of organisms?
(a) Indefinite variation.
(b) Species variation.
(c) Definite variation.
(d) Organism variation.

Short Answer Questions

1. Why do domestic ducks have lighter wings and heavier feet then wild ducks?

2. What term refers to exactly how species change over time?

3. As an example of a variation, what does Darwin indicate in Chapter 1 that is a change due to improved diet?

4. What is the difference between the two types of variations discussed in Chapter 1: Variation Under Domestication?

5. Who is one individual that Darwin mentions as helping him in every way prior to the publication of The Origin of Species?

(see the answer key)

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