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This quiz consists of 5 multiple choice and 5 short answer questions through Part 6, Chapter 29.

Multiple Choice Questions

1. The human body is composed of how many cells?
(a) 500 million.
(b) 10,000 trillion.
(c) 2,000 billion.
(d) 800 thousand.

2. Halley believed that once scientists figured out the distance from the sun to the Earth, they could then calculate what?
(a) Weight of Earth.
(b) Weight of the sun.
(c) Distances to other planets.
(d) Distances to distant stars.

3. What is the current estimate of the number of species that have lived on Earth since the beginning of life on our planet?
(a) 421 thousand.
(b) 27 million.
(c) 30 billion.
(d) 32 trillion.

4. In Chapter 23, the author discusses the battles that go on in the plant world regarding:
(a) What to name plants.
(b) Funding for plant research.
(c) Who owns plant patents.
(d) Using plants for medicinal purposes.

5. Humans share 98.4 percent of their DNA with:
(a) Chinchillas.
(b) Lemurs.
(c) Chimpanzees.
(d) Lions.

Short Answer Questions

1. Richard Owen coined the term paleontology as the study of prehistoric life forms and called the giant animals dinosaurian, meaning:

2. Which of the following is not a DNA component?

3. Scientists assumed stromatolites were extinct until they were discovered where in 1961?

4. Anders Celsius, who designed the Celsius thermometer, was an:

5. When oceanographer Jacques Piccard and a U.S. Navy sailor descended more than 35,000 feet to the deepest part of the world's oceans, what happened?

(see the answer key)

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