2 ELUDOM • 101 DOIB
★ ★
Portage Learning
P College of Online Education
KNOWLEDGE · SCIENCE · INTEGRITY
EST. 2014
BIOD 101 Module 2 Exam
B I O LO G Y: F O U N D AT I O N S O F L I F E — CO M P R E H E N S I V E A S S E S S M E N T
INSTITUTION Portage Learning COURSE CODE BIOD 101
PROGRAM Bachelor of Science in Nursing (BSN) / ACADEMIC YEAR
Pre-Health
EXAM TITLE Module 2 — Characteristics of Life & TOTAL QUESTIONS 120 Questions
Biological Organization
COURSE TITLE General Biology I FORMAT Multiple Choice / Short Answer — Select
the Single Best Answer
EXAMINATION INSTRUCTIONS
▸ Select the single best answer for each question.
▸ This exam covers the characteristics of life, taxonomic hierarchy, domains, kingdoms, and ecological principles.
▸ Questions are derived from the most frequently tested concepts in BIOD 101 Module 2.
▸ Correct answers and detailed rationales are provided for comprehensive review.
SECTION I — CHARACTERISTICS OF LIFE, TAXONOMY & ECOLOGY Questions 1 – 120
1. What is an organism?
A. A collection of non-living chemical compounds.
B. An individual living creature.
C. A group of cells that lack metabolic function.
D. An environmental niche occupied by multiple species.
CORRECT ANSWER B — An individual living creature.
RATIONALE An organism is defined as an individual living entity capable of carrying out life processes including
metabolism, growth, reproduction, and response to stimuli. It is not a collection of non-living compounds, a
non-functional cell group, or an ecological niche. The organism represents one of the fundamental levels of
biological organization.
,2. What are the 7 common characteristics of organisms?
A. Movement, consciousness, language, tool use, culture, emotion, memory.
B. Order, evolutionary adaptation, regulation, energy processing, growth and development, response to environment,
reproduction.
C. Photosynthesis, respiration, fermentation, digestion, circulation, excretion, locomotion.
D. Birth, maturation, senescence, death, decomposition, fossilization, mineralization.
CORRECT ANSWER B — Order, evolutionary adaptation, regulation, energy processing, growth and development,
response to environment, reproduction.
RATIONALE All living organisms share these seven fundamental characteristics. Order refers to structural hierarchy from
atoms to organisms. Evolutionary adaptation involves genetic changes for survival. Regulation maintains
homeostasis. Energy processing drives metabolism. Growth and development occur over a life cycle.
Response to environment involves stimulus detection. Reproduction ensures species continuation.
Consciousness, language, and tool use are not universal characteristics of all organisms.
3. What is the characteristic "order"?
A. The chronological sequence of evolutionary events.
B. Life is structured into a developmental hierarchy.
C. The taxonomic classification system developed by Linnaeus.
D. The sequential steps of cellular respiration.
CORRECT ANSWER B — Life is structured into a developmental hierarchy.
RATIONALE "Order" refers to the hierarchical organization of life, from atoms and molecules at the chemical level to cells,
tissues, organs, organ systems, organisms, populations, communities, ecosystems, and the biosphere. This
structural hierarchy is a defining characteristic of living systems. The cell itself is highly ordered, containing
organelles, dedicated cytoplasmic space, metabolic processes, and microscale adaptations.
4. The ____ itself is highly ordered as it contains organelles, a dedicated cytoplasmic space, conducts metabolic
processes, and undergoes microscale adaptations.
A. Organism.
B. Tissue.
C. Cell.
D. Organ.
CORRECT ANSWER C — Cell.
RATIONALE The cell is the fundamental unit of life that exhibits order at the microscopic level. It contains membrane-
bound organelles (in eukaryotes), a dedicated cytoplasmic space for biochemical reactions, conducts
metabolic processes such as respiration and protein synthesis, and undergoes microscale adaptations to
environmental changes. The cell is the smallest unit that demonstrates all characteristics of life.
,5. What is evolutionary adaptation?
A. A large-scale transformation of one species into another.
B. Smaller, genetic changes that allow for better survival of an organism.
C. The extinction of poorly adapted species.
D. The migration of organisms to new habitats.
CORRECT ANSWER B — Smaller, genetic changes that allow for better survival of an organism.
RATIONALE Evolutionary adaptation refers to smaller-scale genetic modifications that enhance an organism's fitness
within its environment. These are often called generational evolution and should not be confused with
species evolution (macroevolution), which occurs over much longer timescales. An example is color
camouflage. Adaptations are the result of natural selection acting on heritable variation.
6. Evolutionary adaptation should not be confused with...?
A. Natural selection.
B. Genetic drift.
C. Species evolution.
D. Gene flow.
CORRECT ANSWER C — Species evolution.
RATIONALE Evolutionary adaptation (also called generational evolution or microevolution) involves small-scale genetic
changes within a population over relatively short periods. Species evolution (macroevolution) refers to large-
scale changes that produce new species over long timescales. While both involve genetic change, they
operate at different scales and should not be conflated.
7. What is an example of evolutionary adaptation?
A. The formation of a new species of finch.
B. Color camouflage.
C. The extinction of the dinosaurs.
D. The movement of tectonic plates.
CORRECT ANSWER B — Color camouflage.
RATIONALE Color camouflage is a classic example of evolutionary adaptation at the population level. Organisms with
coloration that matches their environment are less visible to predators, increasing survival and reproductive
success. Over generations, the frequency of camouflage alleles increases in the population. This is a small-
scale genetic change that enhances survival — the definition of evolutionary adaptation.
8. What is another name for evolutionary adaptation?
A. Speciation.
B. Generational evolution.
C. Convergent evolution.
D. Punctuated equilibrium.
CORRECT ANSWER B — Generational evolution.
RATIONALE Evolutionary adaptation is also termed "generational evolution" because the adaptive genetic changes
accumulate across successive generations within a population. This distinguishes it from species evolution
(macroevolution). Speciation is the formation of new species. Convergent evolution describes unrelated
organisms evolving similar traits. Punctuated equilibrium is a model of evolutionary rate.
, 9. What is regulation?
A. The process of gene expression control.
B. The ability for a living organism to maintain optimal living conditions.
C. Government oversight of biological research.
D. The enzymatic control of metabolic pathways.
CORRECT ANSWER B — The ability for a living organism to maintain optimal living conditions.
RATIONALE Regulation, also called homeostasis, is the capacity of an organism to maintain a relatively stable internal
environment despite external fluctuations. Living organisms are sensitive to temperature, environmental
stress, and pH requirements. Examples include shivering to generate body heat, sweating to cool, and
insulin/glucagon balance for blood glucose. Homeostasis involves maintaining physiological set points.
10. What is homeostasis?
A. The breakdown of complex molecules for energy.
B. Maintaining set points of living conditions.
C. The synthesis of new organic molecules.
D. The movement of organisms toward favorable conditions.
CORRECT ANSWER B — Maintaining set points of living conditions.
RATIONALE Homeostasis is the maintenance of stable internal conditions (set points) such as body temperature, blood
pH, glucose concentration, and fluid balance. This is achieved through negative feedback mechanisms that
detect deviations from the set point and trigger corrective responses. Homeostasis is a core characteristic of
life — all organisms must regulate their internal environment to survive.
11. What is an example of regulation?
A. A plant growing toward a light source.
B. Shivering to regulate body heat.
C. A bacterium dividing by binary fission.
D. DNA replication before cell division.
CORRECT ANSWER B — Shivering to regulate body heat.
RATIONALE Shivering is a homeostatic mechanism that generates heat through rapid, involuntary muscle contractions
when body temperature drops below the set point. This is a classic example of regulation (homeostasis). A
plant growing toward light is a response to environment (phototropism). Binary fission is reproduction. DNA
replication is part of growth and cell division.
12. What is energy processing?
A. The storage of energy as fat in adipose tissue.
B. How an organism utilizes biochemical reactions to produce energy.
C. The transfer of energy between trophic levels in an ecosystem.
D. The conversion of solar energy to electrical energy.
CORRECT ANSWER B — How an organism utilizes biochemical reactions to produce energy.
RATIONALE Energy processing refers to the sum of biochemical reactions (metabolism) that an organism uses to obtain,
convert, and utilize energy. This includes catabolism (breaking down molecules to release energy) and
anabolism (using energy to build molecules). ATP is the biological fuel currency. Different organisms use
different metabolic strategies: aerobic, anaerobic, photosynthesis, or chemosynthesis.
★ ★
Portage Learning
P College of Online Education
KNOWLEDGE · SCIENCE · INTEGRITY
EST. 2014
BIOD 101 Module 2 Exam
B I O LO G Y: F O U N D AT I O N S O F L I F E — CO M P R E H E N S I V E A S S E S S M E N T
INSTITUTION Portage Learning COURSE CODE BIOD 101
PROGRAM Bachelor of Science in Nursing (BSN) / ACADEMIC YEAR
Pre-Health
EXAM TITLE Module 2 — Characteristics of Life & TOTAL QUESTIONS 120 Questions
Biological Organization
COURSE TITLE General Biology I FORMAT Multiple Choice / Short Answer — Select
the Single Best Answer
EXAMINATION INSTRUCTIONS
▸ Select the single best answer for each question.
▸ This exam covers the characteristics of life, taxonomic hierarchy, domains, kingdoms, and ecological principles.
▸ Questions are derived from the most frequently tested concepts in BIOD 101 Module 2.
▸ Correct answers and detailed rationales are provided for comprehensive review.
SECTION I — CHARACTERISTICS OF LIFE, TAXONOMY & ECOLOGY Questions 1 – 120
1. What is an organism?
A. A collection of non-living chemical compounds.
B. An individual living creature.
C. A group of cells that lack metabolic function.
D. An environmental niche occupied by multiple species.
CORRECT ANSWER B — An individual living creature.
RATIONALE An organism is defined as an individual living entity capable of carrying out life processes including
metabolism, growth, reproduction, and response to stimuli. It is not a collection of non-living compounds, a
non-functional cell group, or an ecological niche. The organism represents one of the fundamental levels of
biological organization.
,2. What are the 7 common characteristics of organisms?
A. Movement, consciousness, language, tool use, culture, emotion, memory.
B. Order, evolutionary adaptation, regulation, energy processing, growth and development, response to environment,
reproduction.
C. Photosynthesis, respiration, fermentation, digestion, circulation, excretion, locomotion.
D. Birth, maturation, senescence, death, decomposition, fossilization, mineralization.
CORRECT ANSWER B — Order, evolutionary adaptation, regulation, energy processing, growth and development,
response to environment, reproduction.
RATIONALE All living organisms share these seven fundamental characteristics. Order refers to structural hierarchy from
atoms to organisms. Evolutionary adaptation involves genetic changes for survival. Regulation maintains
homeostasis. Energy processing drives metabolism. Growth and development occur over a life cycle.
Response to environment involves stimulus detection. Reproduction ensures species continuation.
Consciousness, language, and tool use are not universal characteristics of all organisms.
3. What is the characteristic "order"?
A. The chronological sequence of evolutionary events.
B. Life is structured into a developmental hierarchy.
C. The taxonomic classification system developed by Linnaeus.
D. The sequential steps of cellular respiration.
CORRECT ANSWER B — Life is structured into a developmental hierarchy.
RATIONALE "Order" refers to the hierarchical organization of life, from atoms and molecules at the chemical level to cells,
tissues, organs, organ systems, organisms, populations, communities, ecosystems, and the biosphere. This
structural hierarchy is a defining characteristic of living systems. The cell itself is highly ordered, containing
organelles, dedicated cytoplasmic space, metabolic processes, and microscale adaptations.
4. The ____ itself is highly ordered as it contains organelles, a dedicated cytoplasmic space, conducts metabolic
processes, and undergoes microscale adaptations.
A. Organism.
B. Tissue.
C. Cell.
D. Organ.
CORRECT ANSWER C — Cell.
RATIONALE The cell is the fundamental unit of life that exhibits order at the microscopic level. It contains membrane-
bound organelles (in eukaryotes), a dedicated cytoplasmic space for biochemical reactions, conducts
metabolic processes such as respiration and protein synthesis, and undergoes microscale adaptations to
environmental changes. The cell is the smallest unit that demonstrates all characteristics of life.
,5. What is evolutionary adaptation?
A. A large-scale transformation of one species into another.
B. Smaller, genetic changes that allow for better survival of an organism.
C. The extinction of poorly adapted species.
D. The migration of organisms to new habitats.
CORRECT ANSWER B — Smaller, genetic changes that allow for better survival of an organism.
RATIONALE Evolutionary adaptation refers to smaller-scale genetic modifications that enhance an organism's fitness
within its environment. These are often called generational evolution and should not be confused with
species evolution (macroevolution), which occurs over much longer timescales. An example is color
camouflage. Adaptations are the result of natural selection acting on heritable variation.
6. Evolutionary adaptation should not be confused with...?
A. Natural selection.
B. Genetic drift.
C. Species evolution.
D. Gene flow.
CORRECT ANSWER C — Species evolution.
RATIONALE Evolutionary adaptation (also called generational evolution or microevolution) involves small-scale genetic
changes within a population over relatively short periods. Species evolution (macroevolution) refers to large-
scale changes that produce new species over long timescales. While both involve genetic change, they
operate at different scales and should not be conflated.
7. What is an example of evolutionary adaptation?
A. The formation of a new species of finch.
B. Color camouflage.
C. The extinction of the dinosaurs.
D. The movement of tectonic plates.
CORRECT ANSWER B — Color camouflage.
RATIONALE Color camouflage is a classic example of evolutionary adaptation at the population level. Organisms with
coloration that matches their environment are less visible to predators, increasing survival and reproductive
success. Over generations, the frequency of camouflage alleles increases in the population. This is a small-
scale genetic change that enhances survival — the definition of evolutionary adaptation.
8. What is another name for evolutionary adaptation?
A. Speciation.
B. Generational evolution.
C. Convergent evolution.
D. Punctuated equilibrium.
CORRECT ANSWER B — Generational evolution.
RATIONALE Evolutionary adaptation is also termed "generational evolution" because the adaptive genetic changes
accumulate across successive generations within a population. This distinguishes it from species evolution
(macroevolution). Speciation is the formation of new species. Convergent evolution describes unrelated
organisms evolving similar traits. Punctuated equilibrium is a model of evolutionary rate.
, 9. What is regulation?
A. The process of gene expression control.
B. The ability for a living organism to maintain optimal living conditions.
C. Government oversight of biological research.
D. The enzymatic control of metabolic pathways.
CORRECT ANSWER B — The ability for a living organism to maintain optimal living conditions.
RATIONALE Regulation, also called homeostasis, is the capacity of an organism to maintain a relatively stable internal
environment despite external fluctuations. Living organisms are sensitive to temperature, environmental
stress, and pH requirements. Examples include shivering to generate body heat, sweating to cool, and
insulin/glucagon balance for blood glucose. Homeostasis involves maintaining physiological set points.
10. What is homeostasis?
A. The breakdown of complex molecules for energy.
B. Maintaining set points of living conditions.
C. The synthesis of new organic molecules.
D. The movement of organisms toward favorable conditions.
CORRECT ANSWER B — Maintaining set points of living conditions.
RATIONALE Homeostasis is the maintenance of stable internal conditions (set points) such as body temperature, blood
pH, glucose concentration, and fluid balance. This is achieved through negative feedback mechanisms that
detect deviations from the set point and trigger corrective responses. Homeostasis is a core characteristic of
life — all organisms must regulate their internal environment to survive.
11. What is an example of regulation?
A. A plant growing toward a light source.
B. Shivering to regulate body heat.
C. A bacterium dividing by binary fission.
D. DNA replication before cell division.
CORRECT ANSWER B — Shivering to regulate body heat.
RATIONALE Shivering is a homeostatic mechanism that generates heat through rapid, involuntary muscle contractions
when body temperature drops below the set point. This is a classic example of regulation (homeostasis). A
plant growing toward light is a response to environment (phototropism). Binary fission is reproduction. DNA
replication is part of growth and cell division.
12. What is energy processing?
A. The storage of energy as fat in adipose tissue.
B. How an organism utilizes biochemical reactions to produce energy.
C. The transfer of energy between trophic levels in an ecosystem.
D. The conversion of solar energy to electrical energy.
CORRECT ANSWER B — How an organism utilizes biochemical reactions to produce energy.
RATIONALE Energy processing refers to the sum of biochemical reactions (metabolism) that an organism uses to obtain,
convert, and utilize energy. This includes catabolism (breaking down molecules to release energy) and
anabolism (using energy to build molecules). ATP is the biological fuel currency. Different organisms use
different metabolic strategies: aerobic, anaerobic, photosynthesis, or chemosynthesis.
