Chapter 1: Studying Life

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

Multiple Choice

1. The basic structural and physiological unit of all living organisms is the
2. aggregate.
3. organelle.
4. organism.
5. membrane.
6. cell.

Answer: e

Textbook Reference: 1.1 What Is Biology?

Bloom’s Category: 1. Remembering

2. A cell
3. can be composed of many types of tissues.
4. is found only in plants and animals.
5. is the smallest entity studied by biologists.
6. may be a distinct entity or a building block of a more complex organism.
7. All of the above

Answer: d

Textbook Reference: 1.1 What Is Biology?

Bloom’s Category: 2. Understanding

3. The Curiosity rover is currently searching for signs of life on Mars. What kind of evidence would most likely indicate the presence of living organisms on Mars?
4. Fossilized prokaryotic cells
5. Different nucleic acids and amino acids than those found on Earth
6. Fatty acid molecules
7. Complex molecules containing genetic information
8. Simple organic molecules

Answer: d

Textbook Reference: 1.1 What Is Biology?

Bloom’s Category: 5. Evaluating

4. Which of the following is not true of life?
5. Life has a common ancestry.
6. Life is made up of living organisms.
7. Living organisms are all descended from a common origin.
8. Life has multiple origins.
9. Life has striking similarities across gene sequences.

Answer: d

Textbook Reference: 1.1 What Is Biology?

Bloom’s Category: 2. Understanding

5. Earth is approximately _______ years old.
6. 5.5 million
7. 40–50 million
8. 4.5 billion
9. 5 trillion
10. 40 trillion

Answer: c

Textbook Reference: 1.1 What Is Biology?

Bloom’s Category: 1. Remembering