Test Bank For
Biology 2e By Openstax
By Mary Ann, Jung Choi, Matthew Douglas
,Chapter 1: The Science Of Life
1. Which Characteristic Is Common To All Living Organisms?
A. Ability To Move Voluntarily
B. Presence Of A Nucleus
C. Ability To Reproduce
D. Presence Of Chloroplasts
Answer: C. Ability To Reproduce
Rationale: All Living Organisms Share Fundamental Characteristics, Including
Reproduction, Metabolism, Growth, And Response To Stimuli. While Not All
Organisms Have A Nucleus (Prokaryotes Lack One) Or Chloroplasts,
Reproduction Is Universal.
2. Which Level Of Biological Organization Is Correctly Arranged From
Simplest To Most Complex?
A. Organ → Cell → Tissue → Organ System
B. Cell → Tissue → Organ → Organ System
C. Tissue → Cell → Organ → Organ System
D. Organism → Organ System → Organ → Tissue
Answer: B. Cell → Tissue → Organ → Organ System
Rationale: Biological Organization Progresses From Simple To Complex: Cells
Form Tissues, Tissues Form Organs, Organs Work In Organ Systems, And Organ
Systems Function In Organisms.
3. Homeostasis Is Best Described As:
A. The Ability To Produce Energy
B. Maintaining A Stable Internal Environment
C. The Process Of Evolution
D. The Creation Of New Species
Answer: B. Maintaining A Stable Internal Environment
Rationale: Homeostasis Is The Regulation Of Internal Conditions Such As
Temperature, Ph, And Fluid Balance, Despite Changes In The External
Environment.
,4. The Primary Molecule For Storing Genetic Information Is:
A. Carbohydrates
B. Lipids
C. Dna
D. Proteins
Answer: C. Dna
Rationale: Dna (Deoxyribonucleic Acid) Contains Hereditary Information That
Guides Growth, Development, And Reproduction In All Living Organisms.
5. Evolution Explains:
A. How Individual Organisms Adapt During Their Lifetime
B. How Populations Change Over Generations
C. The Immediate Response Of An Organism To Stimuli
D. The Process Of Cellular Respiration
Answer: B. How Populations Change Over Generations
Rationale: Evolution Is The Process By Which Populations Of Organisms Change
Genetically Over Time Due To Natural Selection, Mutation, And Other Mechanisms.
6. Which Of The Following Is A Prokaryotic Organism?
A. Amoeba
B. Bacterium
C. Algae
D. Yeast
Answer: B. Bacterium
Rationale: Prokaryotic Cells Lack A Nucleus And Membrane-Bound Organelles,
Which Is Characteristic Of Bacteria. Amoebas, Algae, And Yeast Are Eukaryotic.
7. Which Of The Following Best Illustrates An Emergent Property?
A. Chlorophyll In Plants Absorbing Sunlight
B. Water Molecules Forming Liquid
, C. Heart Pumping Blood As Part Of The Circulatory System
D. Dna Replication
Answer: C. Heart Pumping Blood As Part Of The Circulatory System
Rationale: Emergent Properties Arise When Individual Components Interact To
Form A System With New Functions. The Heart Alone Cannot Pump Blood Until
Organized Into A System.
8. Which Scientific Method Step Involves Forming A Testable Statement?
A. Observation
B. Hypothesis
C. Experiment
D. Conclusion
Answer: B. Hypothesis
Rationale: A Hypothesis Is A Testable Statement Predicting A Relationship Between
Variables, Based On Prior Observations.
9. Which Of These Is An Example Of Adaptation?
A. A Plant Wilting Due To Lack Of Water
B. Polar Bears Having Thick Fur In Arctic Regions
C. A Human Learning To Swim
D. Bacteria Dying From Antibiotics
Answer: B. Polar Bears Having Thick Fur In Arctic Regions
Rationale: Adaptations Are Inherited Traits That Increase Survival And
Reproduction In Specific Environments.
10. The Process By Which Organisms Maintain Internal Conditions Despite
External Changes Is Called:
A. Photosynthesis
B. Homeostasis
C. Metabolism
D. Evolution
Biology 2e By Openstax
By Mary Ann, Jung Choi, Matthew Douglas
,Chapter 1: The Science Of Life
1. Which Characteristic Is Common To All Living Organisms?
A. Ability To Move Voluntarily
B. Presence Of A Nucleus
C. Ability To Reproduce
D. Presence Of Chloroplasts
Answer: C. Ability To Reproduce
Rationale: All Living Organisms Share Fundamental Characteristics, Including
Reproduction, Metabolism, Growth, And Response To Stimuli. While Not All
Organisms Have A Nucleus (Prokaryotes Lack One) Or Chloroplasts,
Reproduction Is Universal.
2. Which Level Of Biological Organization Is Correctly Arranged From
Simplest To Most Complex?
A. Organ → Cell → Tissue → Organ System
B. Cell → Tissue → Organ → Organ System
C. Tissue → Cell → Organ → Organ System
D. Organism → Organ System → Organ → Tissue
Answer: B. Cell → Tissue → Organ → Organ System
Rationale: Biological Organization Progresses From Simple To Complex: Cells
Form Tissues, Tissues Form Organs, Organs Work In Organ Systems, And Organ
Systems Function In Organisms.
3. Homeostasis Is Best Described As:
A. The Ability To Produce Energy
B. Maintaining A Stable Internal Environment
C. The Process Of Evolution
D. The Creation Of New Species
Answer: B. Maintaining A Stable Internal Environment
Rationale: Homeostasis Is The Regulation Of Internal Conditions Such As
Temperature, Ph, And Fluid Balance, Despite Changes In The External
Environment.
,4. The Primary Molecule For Storing Genetic Information Is:
A. Carbohydrates
B. Lipids
C. Dna
D. Proteins
Answer: C. Dna
Rationale: Dna (Deoxyribonucleic Acid) Contains Hereditary Information That
Guides Growth, Development, And Reproduction In All Living Organisms.
5. Evolution Explains:
A. How Individual Organisms Adapt During Their Lifetime
B. How Populations Change Over Generations
C. The Immediate Response Of An Organism To Stimuli
D. The Process Of Cellular Respiration
Answer: B. How Populations Change Over Generations
Rationale: Evolution Is The Process By Which Populations Of Organisms Change
Genetically Over Time Due To Natural Selection, Mutation, And Other Mechanisms.
6. Which Of The Following Is A Prokaryotic Organism?
A. Amoeba
B. Bacterium
C. Algae
D. Yeast
Answer: B. Bacterium
Rationale: Prokaryotic Cells Lack A Nucleus And Membrane-Bound Organelles,
Which Is Characteristic Of Bacteria. Amoebas, Algae, And Yeast Are Eukaryotic.
7. Which Of The Following Best Illustrates An Emergent Property?
A. Chlorophyll In Plants Absorbing Sunlight
B. Water Molecules Forming Liquid
, C. Heart Pumping Blood As Part Of The Circulatory System
D. Dna Replication
Answer: C. Heart Pumping Blood As Part Of The Circulatory System
Rationale: Emergent Properties Arise When Individual Components Interact To
Form A System With New Functions. The Heart Alone Cannot Pump Blood Until
Organized Into A System.
8. Which Scientific Method Step Involves Forming A Testable Statement?
A. Observation
B. Hypothesis
C. Experiment
D. Conclusion
Answer: B. Hypothesis
Rationale: A Hypothesis Is A Testable Statement Predicting A Relationship Between
Variables, Based On Prior Observations.
9. Which Of These Is An Example Of Adaptation?
A. A Plant Wilting Due To Lack Of Water
B. Polar Bears Having Thick Fur In Arctic Regions
C. A Human Learning To Swim
D. Bacteria Dying From Antibiotics
Answer: B. Polar Bears Having Thick Fur In Arctic Regions
Rationale: Adaptations Are Inherited Traits That Increase Survival And
Reproduction In Specific Environments.
10. The Process By Which Organisms Maintain Internal Conditions Despite
External Changes Is Called:
A. Photosynthesis
B. Homeostasis
C. Metabolism
D. Evolution
