COMPREHENSIVE
DATABASE & SQL
CONCEPTS FOR
RELATIONAL DATABASES
QUESTIONS & ANSWERS
2026/2027 | SQL
FUNDAMENTALS,
RELATIONAL DATABASE
DESIGN, DBMS CONCEPTS,
DATABASE QUERIES,
VERIFIED QUESTIONS &
ANSWERS, EXAM PREP
STUDY GUIDE
,Comprehensive Examination: Campbell Biology (12th
& 13th Editions)
Chapters 1–10: Themes of Biology, Chemistry of Life, and
Cell Structure
Instructions: This examination covers foundational concepts from Campbell Biology.
Correct answers are bolded and include rationales explaining the biological principles
tested.
Section 1: Evolution, the Themes of Biology, and Scientific
Inquiry (Questions 1-25)
1. Which of the following best demonstrates the unity among all organisms?
A) Emergent properties
B) Descent with modification
C) The structure and function of DNA
D) Natural selection
Rationale: The structure and function of DNA is shared by all organisms, demonstrating
unity among life forms. All organisms use DNA as their genetic material and share a
common genetic code .
2. Which sequence correctly lists the biological hierarchy from LEAST inclusive to
MOST inclusive?
A) ecosystem, population, organ system, cell, community, molecule, organ, organism,
organelle, tissue
B) cell, molecule, organ system, organ, organelle, population, tissue, organism,
ecosystem, community
C) molecule, organelle, cell, tissue, organ, organ system, organism, population,
community, ecosystem
D) organism, organ system, tissue, population, organ, organelle, community, cell,
ecosystem, molecule
Rationale: The biological hierarchy from least inclusive (simplest) to most inclusive (most
,complex) is: molecule → organelle → cell → tissue → organ → organ system → organism
→ population → community → ecosystem .
3. A cell lacking which of the following structures is most likely to be a
prokaryote?
A) Nuclear membrane
B) Cell membrane
C) Ribosomes
D) DNA
Rationale: Prokaryotic cells lack a membrane-enclosed nucleus. Their DNA is located in
the nucleoid region rather than within a nuclear envelope .
4. Which of the following types of cells use DNA as their genetic material but do
not have their DNA encased within a nuclear envelope?
A) Animal
B) Plant
C) Archaea
D) Fungi
Rationale: Archaea are prokaryotic organisms, meaning their cells lack a nucleus, and
their DNA is not membrane-enclosed .
5. What is the correct order of organization of genetic material from smallest to
largest?
A) Gene, nucleotide, chromosome, genome
B) Chromosome, genome, nucleotide, gene
C) Genome, chromosome, gene, nucleotide
D) Nucleotide, gene, chromosome, genome
Rationale: Nucleotides are the monomers that make up genes (DNA segments), which are
organized into chromosomes, which together comprise the genome .
6. Which of the following is NOT a property of life?
A) Energy processing
B) Evolutionary adaptation
C) Growth and development
D) Spontaneous generation
Rationale: Spontaneous generation is the disproven idea that life can arise from nonliving
matter. The other options are recognized properties of life .
7. The process by which organisms with favorable variations survive and
reproduce more than those without such variations is called:
A) Natural selection
, B) Artificial selection
C) Evolution
D) Adaptation
Rationale: Natural selection is the differential survival and reproduction of individuals
based on heritable variations .
8. In an ecosystem, energy:
A) cycles along with chemical nutrients
B) typically flows from consumers to producers to decomposers
C) typically flows from producers to a series of consumers
D) comes ultimately from bacteria
Rationale: Energy flows through an ecosystem in one direction, typically from producers
(photosynthetic organisms) to consumers (herbivores, carnivores) .
9. Which of the following statements about the properties of life is FALSE?
A) All organisms have the ability to take in energy and use it.
B) All organisms have the ability to respond to stimuli from the environment.
C) All organisms have the ability to reproduce.
D) All organisms have the ability to maintain a constant internal temperature.
Rationale: While many organisms maintain homeostasis, not all organisms maintain a
constant internal temperature. Only endothermic organisms (birds and mammals)
maintain a constant body temperature .
10. The tree in your backyard is home to two cardinals, a colony of ants, a wasp's
nest, two squirrels, and millions of bacteria. Together, all of these organisms
represent:
A) a species
B) a community
C) a population
D) an ecosystem
Rationale: A community consists of all the populations of different species living in the
same area. Since the organisms include multiple species, they collectively represent a
community .
11. A hypothesis is:
A) A proven fact
B) A tentative explanation for an observation
C) A law of nature
D) A conclusion based on data
Rationale: A hypothesis is a tentative explanation for an observation that can be tested
through experimentation or further observation .
DATABASE & SQL
CONCEPTS FOR
RELATIONAL DATABASES
QUESTIONS & ANSWERS
2026/2027 | SQL
FUNDAMENTALS,
RELATIONAL DATABASE
DESIGN, DBMS CONCEPTS,
DATABASE QUERIES,
VERIFIED QUESTIONS &
ANSWERS, EXAM PREP
STUDY GUIDE
,Comprehensive Examination: Campbell Biology (12th
& 13th Editions)
Chapters 1–10: Themes of Biology, Chemistry of Life, and
Cell Structure
Instructions: This examination covers foundational concepts from Campbell Biology.
Correct answers are bolded and include rationales explaining the biological principles
tested.
Section 1: Evolution, the Themes of Biology, and Scientific
Inquiry (Questions 1-25)
1. Which of the following best demonstrates the unity among all organisms?
A) Emergent properties
B) Descent with modification
C) The structure and function of DNA
D) Natural selection
Rationale: The structure and function of DNA is shared by all organisms, demonstrating
unity among life forms. All organisms use DNA as their genetic material and share a
common genetic code .
2. Which sequence correctly lists the biological hierarchy from LEAST inclusive to
MOST inclusive?
A) ecosystem, population, organ system, cell, community, molecule, organ, organism,
organelle, tissue
B) cell, molecule, organ system, organ, organelle, population, tissue, organism,
ecosystem, community
C) molecule, organelle, cell, tissue, organ, organ system, organism, population,
community, ecosystem
D) organism, organ system, tissue, population, organ, organelle, community, cell,
ecosystem, molecule
Rationale: The biological hierarchy from least inclusive (simplest) to most inclusive (most
,complex) is: molecule → organelle → cell → tissue → organ → organ system → organism
→ population → community → ecosystem .
3. A cell lacking which of the following structures is most likely to be a
prokaryote?
A) Nuclear membrane
B) Cell membrane
C) Ribosomes
D) DNA
Rationale: Prokaryotic cells lack a membrane-enclosed nucleus. Their DNA is located in
the nucleoid region rather than within a nuclear envelope .
4. Which of the following types of cells use DNA as their genetic material but do
not have their DNA encased within a nuclear envelope?
A) Animal
B) Plant
C) Archaea
D) Fungi
Rationale: Archaea are prokaryotic organisms, meaning their cells lack a nucleus, and
their DNA is not membrane-enclosed .
5. What is the correct order of organization of genetic material from smallest to
largest?
A) Gene, nucleotide, chromosome, genome
B) Chromosome, genome, nucleotide, gene
C) Genome, chromosome, gene, nucleotide
D) Nucleotide, gene, chromosome, genome
Rationale: Nucleotides are the monomers that make up genes (DNA segments), which are
organized into chromosomes, which together comprise the genome .
6. Which of the following is NOT a property of life?
A) Energy processing
B) Evolutionary adaptation
C) Growth and development
D) Spontaneous generation
Rationale: Spontaneous generation is the disproven idea that life can arise from nonliving
matter. The other options are recognized properties of life .
7. The process by which organisms with favorable variations survive and
reproduce more than those without such variations is called:
A) Natural selection
, B) Artificial selection
C) Evolution
D) Adaptation
Rationale: Natural selection is the differential survival and reproduction of individuals
based on heritable variations .
8. In an ecosystem, energy:
A) cycles along with chemical nutrients
B) typically flows from consumers to producers to decomposers
C) typically flows from producers to a series of consumers
D) comes ultimately from bacteria
Rationale: Energy flows through an ecosystem in one direction, typically from producers
(photosynthetic organisms) to consumers (herbivores, carnivores) .
9. Which of the following statements about the properties of life is FALSE?
A) All organisms have the ability to take in energy and use it.
B) All organisms have the ability to respond to stimuli from the environment.
C) All organisms have the ability to reproduce.
D) All organisms have the ability to maintain a constant internal temperature.
Rationale: While many organisms maintain homeostasis, not all organisms maintain a
constant internal temperature. Only endothermic organisms (birds and mammals)
maintain a constant body temperature .
10. The tree in your backyard is home to two cardinals, a colony of ants, a wasp's
nest, two squirrels, and millions of bacteria. Together, all of these organisms
represent:
A) a species
B) a community
C) a population
D) an ecosystem
Rationale: A community consists of all the populations of different species living in the
same area. Since the organisms include multiple species, they collectively represent a
community .
11. A hypothesis is:
A) A proven fact
B) A tentative explanation for an observation
C) A law of nature
D) A conclusion based on data
Rationale: A hypothesis is a tentative explanation for an observation that can be tested
through experimentation or further observation .
