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General Biology 200 Campbell 3rd Edition
Exam 1 Questions and Answers Study
Guide | 100% Pass Guaranteed | Graded
A+
1. Which of the following best describes the concept of "descent with modification"?
A. Species are fixed and unchanging over time
B. All living organisms share a common ancestor and have changed over time
C. Organisms spontaneously generate from nonliving matter
D. Each species was independently created in its present form
ANS: B
Explanation: Descent with modification is the central concept of evolution, proposing
that all living organisms share a common ancestor and have changed over time through
natural selection and other mechanisms, giving rise to the diversity of life. Option A
describes fixity of species, option C describes spontaneous generation, and option D
describes special creation.
2. Which of the following correctly lists the levels of biological organization from smallest
to largest?
A. Biosphere, ecosystem, community, population, organism, organ system, organ, tissue,
, 2
cell, molecule
B. Molecule, cell, tissue, organ, organ system, organism, population, community,
ecosystem, biosphere
C. Cell, molecule, tissue, organ, organism, population, ecosystem, community, biosphere,
organ system
D. Molecule, tissue, cell, organ, organism, community, population, ecosystem, biosphere,
organ system
ANS: B
Explanation: The levels of biological organization from smallest to largest are:
molecule, cell, tissue, organ, organ system, organism, population, community,
ecosystem, and biosphere. Options A, C, and D all have incorrect sequencing.
3. All of the individuals of the same species living within a specified area is known as a
A. community
B. ecosystem
C. family
D. population
ANS: D
Explanation: A population consists of all individuals of the same species living in a
specific geographic area at a given time. Option A includes multiple species, option B
, 3
includes both living and nonliving components, and option C is a taxonomic rank above
genus.
4. All of the living things on Earth along with all of the places where life exists is known as
A. an ecosystem
B. the biosphere
C. a biological community
D. a population
ANS: B
Explanation: The biosphere is the global sum of all ecosystems, encompassing all living
organisms and the environments where life exists. Option A is smaller in scale, option C
excludes nonliving components, and option D refers to a single species.
5. Which of the following is NOT a property of life?
A. Energy processing
B. Evolutionary adaptation
C. Growth and development
D. Spontaneous generation
ANS: D
Explanation: Spontaneous generation is the disproven idea that life can arise from
, 4
nonliving matter. Options A, B, and C are all recognized properties of life: energy
processing, evolutionary adaptation, and growth and development.
6. 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. genetic drift
ANS: A
Explanation: Natural selection is the differential survival and reproduction of
individuals based on heritable variations. Option B involves human intervention, option C
is the broader process of change over time, and option D is random change in allele
frequencies.
7. Organisms interact with their environments, exchanging matter and energy. For
example, plant chloroplasts convert the energy of sunlight to
A. the energy of motion
B. carbon dioxide and water
C. chemical energy
D. oxygen
General Biology 200 Campbell 3rd Edition
Exam 1 Questions and Answers Study
Guide | 100% Pass Guaranteed | Graded
A+
1. Which of the following best describes the concept of "descent with modification"?
A. Species are fixed and unchanging over time
B. All living organisms share a common ancestor and have changed over time
C. Organisms spontaneously generate from nonliving matter
D. Each species was independently created in its present form
ANS: B
Explanation: Descent with modification is the central concept of evolution, proposing
that all living organisms share a common ancestor and have changed over time through
natural selection and other mechanisms, giving rise to the diversity of life. Option A
describes fixity of species, option C describes spontaneous generation, and option D
describes special creation.
2. Which of the following correctly lists the levels of biological organization from smallest
to largest?
A. Biosphere, ecosystem, community, population, organism, organ system, organ, tissue,
, 2
cell, molecule
B. Molecule, cell, tissue, organ, organ system, organism, population, community,
ecosystem, biosphere
C. Cell, molecule, tissue, organ, organism, population, ecosystem, community, biosphere,
organ system
D. Molecule, tissue, cell, organ, organism, community, population, ecosystem, biosphere,
organ system
ANS: B
Explanation: The levels of biological organization from smallest to largest are:
molecule, cell, tissue, organ, organ system, organism, population, community,
ecosystem, and biosphere. Options A, C, and D all have incorrect sequencing.
3. All of the individuals of the same species living within a specified area is known as a
A. community
B. ecosystem
C. family
D. population
ANS: D
Explanation: A population consists of all individuals of the same species living in a
specific geographic area at a given time. Option A includes multiple species, option B
, 3
includes both living and nonliving components, and option C is a taxonomic rank above
genus.
4. All of the living things on Earth along with all of the places where life exists is known as
A. an ecosystem
B. the biosphere
C. a biological community
D. a population
ANS: B
Explanation: The biosphere is the global sum of all ecosystems, encompassing all living
organisms and the environments where life exists. Option A is smaller in scale, option C
excludes nonliving components, and option D refers to a single species.
5. Which of the following is NOT a property of life?
A. Energy processing
B. Evolutionary adaptation
C. Growth and development
D. Spontaneous generation
ANS: D
Explanation: Spontaneous generation is the disproven idea that life can arise from
, 4
nonliving matter. Options A, B, and C are all recognized properties of life: energy
processing, evolutionary adaptation, and growth and development.
6. 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. genetic drift
ANS: A
Explanation: Natural selection is the differential survival and reproduction of
individuals based on heritable variations. Option B involves human intervention, option C
is the broader process of change over time, and option D is random change in allele
frequencies.
7. Organisms interact with their environments, exchanging matter and energy. For
example, plant chloroplasts convert the energy of sunlight to
A. the energy of motion
B. carbon dioxide and water
C. chemical energy
D. oxygen
