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This quiz consists of 5 multiple choice and 5 short answer questions through Chapters IX-X.

Multiple Choice Questions

1. How many prey could a colony of army ants on the march consume per day?
(a) 30,000.
(b) 5,000.
(c) 75,000.
(d) 11,000.

2. When was the best time to hear birds in the Amazon?
(a) Before dawn.
(b) Dusk.
(c) Dawn.
(d) Around dusk.

3. How many species of arthropods did Terry Erwin estimate lived in the tropics?
(a) 200,000.
(b) 5 million.
(c) 100,000.
(d) 30 million.

4. How long did the uniformitarian account of extinction hold up?
(a) 75 years.
(b) About 50 years.
(c) More than a century.
(d) 115 years.

5. When did Walter Alvarez visit the Gola del Bottaccione?
(a) Early 1970s.
(b) 1964.
(c) 1978.
(d) Late 1970s.

Short Answer Questions

1. When the Alvarezes published their hypothesis, how many sites did they know of where the iridium layer was exposed?

2. How many species of birds were estimated to live in the entire world?

3. According to an old ballad, who was pushed over a precipice at Dob's Linn?

4. In the BDFFP's study plots, how many species of trees have been identified?

5. Where was Walter Alvarez's father a physicist?

(see the answer key)

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