OpenStax Biology 2e Instructor Answer Guide
OpenStax
(28 filesBiology
merged).pdf
OpenStax 2e Instructor
Biology Answer
2eIAG_1:
Instructor Guide
OpenStax
2026Answer (28 filesBiology
Guide: merged).pdf
2026 2e Instructor Answer Guide (28 files merged).pdf
OpenStax Biology 2e Instructor Answer Guide
Biology 2e
Unit 1: The Chemistry of Life
Chapter 1: The Study of Life
Visual Connection Questions
1. In the example below, the scientific method is used to solve an everyday problem. Order the
scientific method steps (numbered items) with the process of solving the everyday problem
(lettered items). Based on the results of the experiment, is the hypothesis correct? If it is
incorrect, propose some alternative hypotheses.
1. Observation: C. My toaster doesn’t toast my bread.
2. Question: F. Why doesn’t my toaster work?
3. Hypothesis: A. There is something wrong with the electrical outlet.
4. Prediction: B. If something is wrong with the outlet, my coffeemaker also won’t work when
plugged into it.
5. Experiment: D. I plug my coffee maker into the outlet.
6. Result: E. My coffeemaker works.
The original hypothesis is incorrect, as the coffeemaker works when plugged into the outlet.
Alternative hypotheses include that the toaster might be broken or that the toaster wasn’t
turned on.
3/27/2026, 7:07:45
OpenStax BiologyPM
2e Instructor Answer Guide
OpenStax
(28 filesBiology
merged).pdf 3/27/2026
2e Instructor Answer Guide
OpenStax
(28 filesBiology 2e Instructor Answer Guide3/27/2026,
merged).pdf 7:07:42 PM
(28 files merged).pdf
,OpenStax Biology 2e Instructor Answer Guide
OpenStax
(28 filesBiology
merged).pdf
OpenStax 2e Instructor
Biology Answer
2eIAG_1:
Instructor Guide
OpenStax
2026Answer (28 filesBiology
Guide: merged).pdf
2026 2e Instructor Answer Guide (28 files merged).pdf
OpenStax Biology 2e Instructor Answer Guide
2. Decide if each of the following is an example of inductive or deductive reasoning.
1: inductive
2: deductive
3: deductive
4: inductive
3. Which of the following statements is false?
b. Communities exist within populations which exist within ecosystems.
3/27/2026, 7:07:45
OpenStax BiologyPM
2e Instructor Answer Guide
OpenStax
(28 filesBiology
merged).pdf 3/27/2026
2e Instructor Answer Guide
OpenStax
(28 filesBiology 2e Instructor Answer Guide3/27/2026,
merged).pdf 7:07:42 PM
(28 files merged).pdf
, OpenStax Biology 2e Instructor Answer Guide
OpenStax
(28 filesBiology
merged).pdf
OpenStax 2e Instructor
Biology Answer
2eIAG_1:
Instructor Guide
OpenStax
2026Answer (28 filesBiology
Guide: merged).pdf
2026 2e Instructor Answer Guide (28 files merged).pdf
OpenStax Biology 2e Instructor Answer Guide
Review Questions
4. The first forms of life on Earth were ____.
b. microorganisms
5. A suggested and testable explanation for an event is called a ___.
a. hypothesis
6. Which of the following sciences is not considered a natural science?
d. computer science
7. The type of logical thinking that uses related observations to arrive at a general conclusion is
called ____.
d. inductive reasoning
8. The process of ____ helps to ensure that a scientist’s research is original, significant, logical,
and thorough.
c. peer review
9. A person notices that her houseplants that are regularly exposed to music seem to grow
more quickly than those in rooms with no music. As a result, she determines that plants grow
better when exposed to music. This example most closely resembles which type of reasoning?
a. inductive reasoning
10. The smallest unit of biological structure that meets the functional requirements of “living” is
the ____.
c. cell
11. Viruses are not considered living because they ____.
a. are not made of cells
12. The presence of a membrane-enclosed nucleus is a characteristic of _____.
b. eukaryotic cells
13. A group of individuals of the same species living in the same area is called a(n) _____.
c. population
14. Which of the following sequences represents the hierarchy of biological organization from
the most inclusive to the least complex level?
d. biosphere, ecosystem, community, population, organism
15. Where in a phylogenetic tree would you expect to find the organism that had evolved most
recently?
d. at the branch tips
3/27/2026, 7:07:45
OpenStax BiologyPM
2e Instructor Answer Guide
OpenStax
(28 filesBiology
merged).pdf 3/27/2026
2e Instructor Answer Guide
OpenStax
(28 filesBiology 2e Instructor Answer Guide3/27/2026,
merged).pdf 7:07:42 PM
(28 files merged).pdf
OpenStax
(28 filesBiology
merged).pdf
OpenStax 2e Instructor
Biology Answer
2eIAG_1:
Instructor Guide
OpenStax
2026Answer (28 filesBiology
Guide: merged).pdf
2026 2e Instructor Answer Guide (28 files merged).pdf
OpenStax Biology 2e Instructor Answer Guide
Biology 2e
Unit 1: The Chemistry of Life
Chapter 1: The Study of Life
Visual Connection Questions
1. In the example below, the scientific method is used to solve an everyday problem. Order the
scientific method steps (numbered items) with the process of solving the everyday problem
(lettered items). Based on the results of the experiment, is the hypothesis correct? If it is
incorrect, propose some alternative hypotheses.
1. Observation: C. My toaster doesn’t toast my bread.
2. Question: F. Why doesn’t my toaster work?
3. Hypothesis: A. There is something wrong with the electrical outlet.
4. Prediction: B. If something is wrong with the outlet, my coffeemaker also won’t work when
plugged into it.
5. Experiment: D. I plug my coffee maker into the outlet.
6. Result: E. My coffeemaker works.
The original hypothesis is incorrect, as the coffeemaker works when plugged into the outlet.
Alternative hypotheses include that the toaster might be broken or that the toaster wasn’t
turned on.
3/27/2026, 7:07:45
OpenStax BiologyPM
2e Instructor Answer Guide
OpenStax
(28 filesBiology
merged).pdf 3/27/2026
2e Instructor Answer Guide
OpenStax
(28 filesBiology 2e Instructor Answer Guide3/27/2026,
merged).pdf 7:07:42 PM
(28 files merged).pdf
,OpenStax Biology 2e Instructor Answer Guide
OpenStax
(28 filesBiology
merged).pdf
OpenStax 2e Instructor
Biology Answer
2eIAG_1:
Instructor Guide
OpenStax
2026Answer (28 filesBiology
Guide: merged).pdf
2026 2e Instructor Answer Guide (28 files merged).pdf
OpenStax Biology 2e Instructor Answer Guide
2. Decide if each of the following is an example of inductive or deductive reasoning.
1: inductive
2: deductive
3: deductive
4: inductive
3. Which of the following statements is false?
b. Communities exist within populations which exist within ecosystems.
3/27/2026, 7:07:45
OpenStax BiologyPM
2e Instructor Answer Guide
OpenStax
(28 filesBiology
merged).pdf 3/27/2026
2e Instructor Answer Guide
OpenStax
(28 filesBiology 2e Instructor Answer Guide3/27/2026,
merged).pdf 7:07:42 PM
(28 files merged).pdf
, OpenStax Biology 2e Instructor Answer Guide
OpenStax
(28 filesBiology
merged).pdf
OpenStax 2e Instructor
Biology Answer
2eIAG_1:
Instructor Guide
OpenStax
2026Answer (28 filesBiology
Guide: merged).pdf
2026 2e Instructor Answer Guide (28 files merged).pdf
OpenStax Biology 2e Instructor Answer Guide
Review Questions
4. The first forms of life on Earth were ____.
b. microorganisms
5. A suggested and testable explanation for an event is called a ___.
a. hypothesis
6. Which of the following sciences is not considered a natural science?
d. computer science
7. The type of logical thinking that uses related observations to arrive at a general conclusion is
called ____.
d. inductive reasoning
8. The process of ____ helps to ensure that a scientist’s research is original, significant, logical,
and thorough.
c. peer review
9. A person notices that her houseplants that are regularly exposed to music seem to grow
more quickly than those in rooms with no music. As a result, she determines that plants grow
better when exposed to music. This example most closely resembles which type of reasoning?
a. inductive reasoning
10. The smallest unit of biological structure that meets the functional requirements of “living” is
the ____.
c. cell
11. Viruses are not considered living because they ____.
a. are not made of cells
12. The presence of a membrane-enclosed nucleus is a characteristic of _____.
b. eukaryotic cells
13. A group of individuals of the same species living in the same area is called a(n) _____.
c. population
14. Which of the following sequences represents the hierarchy of biological organization from
the most inclusive to the least complex level?
d. biosphere, ecosystem, community, population, organism
15. Where in a phylogenetic tree would you expect to find the organism that had evolved most
recently?
d. at the branch tips
3/27/2026, 7:07:45
OpenStax BiologyPM
2e Instructor Answer Guide
OpenStax
(28 filesBiology
merged).pdf 3/27/2026
2e Instructor Answer Guide
OpenStax
(28 filesBiology 2e Instructor Answer Guide3/27/2026,
merged).pdf 7:07:42 PM
(28 files merged).pdf
