Introduction to Biology
Final Test Solutions
Course Introduction
Introduction to Biology explores the fundamental principles of life and living organisms, offering an overview of cell structure and function, genetics, evolution, ecology, and biological diversity. Students will examine the scientific method, the chemistry of life, energy transformation, and the complex interactions among organisms and their environments. This course lays a foundational understanding of biological concepts and processes, preparing students for more advanced study in various areas of the life sciences.
Recommended Textbook
Biology The Core 1st Edition by Eric J. Simon
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12 Chapters
699 Verified Questions
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Chapter 1: An Introduction to the Science of Life
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Sample Questions
Q1) Natural selection ________.
A)prepares organisms for future changes in the environment
B)is a rare phenomenon
C)is the result of sampling error
D)results in evolutionary adaptation
Answer: D
Q2) Which property or properties of life does a virus possess?
A)Has order
B)Has cells
C)Can reproduce on its own
D)All of the above
Answer: A
Q3) Skin is sometimes referred to as the largest organ of the body.Why is skin considered to be an organ and not a tissue or some other structure?
A)Skin consists of multiple cell types functioning as a single integrated unit.
B)Skin consists of multiple tissue types that cooperate to perform a specific task.
C)Skin is a vital component of multiple organ systems.
D)Skin consists of a single cell type.
Answer: B
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Chapter 2: The Chemistry of Life
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Sample Questions
Q1) Which of the following dietary fats is considered to be the most healthy?
A)Saturated fat
B)Unsaturated fat
C)Trans fat
D)Cholesterol
Answer: B
Q2) What is a trace element?
A)An element that is very rare
B)An element that is evenly distributed on the planet
C)An element that is required in miniscule amounts for life
D)An element that is used to identify the location of other elements
Answer: C
Q3) In chemical bonding,when the bonded atoms share electrons,it is specifically called
A)an ionic bond
B)a covalent bond
C)a hydrogen bond
D)a polar bond
Answer: B
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Page 4
Chapter 3: The Cell: The Fundamental Unit of Life
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Sample Questions
Q1) What evidence would support the hypothesis that larger cells evolved in part by engulfing other,smaller cells.
Answer: Eukaryotic cells have several organelles (nucleus,mitochondria,chloroplasts)that contain a double membrane and have their own DNA.The DNA of the mitochondria and chloroplasts are arranged in plasmids,resembling the DNA of bacteria.They even divide like bacteria.Their smaller size,double walls,and plasmid DNA suggest they were absorbed by endocytosis,but instead of being digested,they were assimilated as powerhouse organelles.The symbiotic relationship evolved to the point where they became a single organism.Additionally,the smaller and simpler prokaryotic cells were on the planet for 2 billion years before the larger,more complex eukaryotic cells,giving them sufficient time to evolve.
Q2) Plant cells,fungal cells,and even bacterial cells have a cell wall.What is the primary difference between these similar structures?
A)They are made of different materials.
B)They perform different functions.
C)They are found in different portions of the cell.
D)There is no difference; they are fundamentally identical.
Answer: A
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Chapter 4: Energy and Life
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Sample Questions
Q1) What is the role of chloroplasts in animals?
A)Produce ATP
B)Photosynthesis
C)Produce sugars
D)None,as animals do not have chloroplasts
Q2) What is the role of light in photosynthesis?
A)It is the source for electrons.
B)It fixes carbon.
C)It energizes electrons.
D)It splits ATP molecules,which generates energy.
Q3) Heat is classified as ________.
A)a highly ordered form of energy
B)a highly disordered form of energy
C)the form of energy that fuels life's processes
D)the ultimate source of potential energy
Q4) Why do you need oxygen? (What role does O play in aerobic respiration?)
A)It is the final electron acceptor at the end of the electron transport chain.
B)It combines with acetyl-CoA at the start of the citric acid cycle.
C)It is given off as a by-product during the oxidation of pyruvate.
D)It combines with H O to help drive the formation of ATP.
Page 6
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Chapter 5: Chromosomes and Inheritance
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Sample Questions
Q1) If a cell had 12 chromosomes at the beginning of meiosis II,how many would each daughter cell have after the completion of meiosis II?
A)6
B)12
C)18
D)24
Q2) What is Geoff's allele combination?
A)NN
B)Nn
C)nn
D)Cannot be determined
Q3) What type of cells undergo mitosis?
A)Bacterial cells
B)Gametes
C)Both of these
D)Neither of these
Q4) Is an individual with the XXY combination of chromosomes anatomically male or female?
A)Male
B)Female
Page 7
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Chapter 6: DNA: The Molecule of Life
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Sample Questions
Q1) What separates the strands of DNA in the polymerase chain reaction (PCR)technique?
A)Restriction enzymes
B)Helicase
C)Centrifuge
D)Heat
Q2) How would the cDNA created in the lab compare to the original DNA?
A)It would be shorter because it only represents the genes that were transcribed in the cell at the time.
B)It would be longer because it would also include sequences needed to stabilize the molecule.
C)It would be single stranded because it is made by copying only the coding strand of DNA.
D)It would be circular instead of linear because bacteria are used in the process and they can only work with circular DNA molecules.
Q3) Does the clone have a belly button?
A)Yes
B)No
C)It depends on whether it is male or female.
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Page 8
Chapter 7: Darwinian Evolution
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Sample Questions
Q1) A straggler with green eyes stumbles into the last remaining human outpost.The green eye trait did not exist in the outpost before her arrival,but it does now.What is the name of this mechanism of evolution?
A)Gene flow
B)Genetic drift
C)Bottleneck effect
D)Founder effect
Q2) Which grouping immediately follows Order in the classification hierarchy?
A)Genus
B)Family
C)Phylum
D)Class
Q3) Which would be a postzygotic barrier to reproduction?
A)Behavioral isolation
B)Mating time differences
C)Habitat isolation
D)Hybrid weakness
Q4) Explain how a complex trait,like eyes or the ability to fly,can evolve by incremental modifications over time.
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Chapter 8: Biodiversity 1: Microscopic Organisms
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Sample Questions
Q1) Why is there no cure for prion-related diseases?
Q2) Which of the following is a form of reproduction in bacteria?
A)Transformation
B)Transduction
C)Neither of these
D)Both of these
Q3) Approximately when did the earth's crust solidify?
A)8 billion years ago
B)4 billion years ago
C)2 billion years ago
D)1 billion years ago
Q4) Which is not a method of introducing new genes into a bacterium?
A)Transformation
B)Transduction
C)Binary fission
D)Conjugation
Q5) Describe all the possible forms of nucleic acids found in viruses.
Q6) HIV,the virus that causes AIDS in humans,does not infect other animals,but only certain cells in the human body.Why?
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Chapter 9: Biodiversity 2: Fungi and Plants
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Sample Questions
Q1) Which is not a characteristic of the gymnosperms?
A)Cones
B)Seeds
C)Pollen
D)Flowers
Q2) What is the most recent common ancestor of fungi and animals?
A)A protist
B)Moss
C)A bryophyte
D)Algae
Q3) What do grasses,rose bushes,and cactus all have in common?
A)They are all wind pollinators.
B)They all have flowers.
C)They all have cones.
D)They all have thorns.
Q4) What do gymnosperms and angiosperms have in common?
A)Flowers
B)Seeds
C)Spores
D)None of these
Page 11
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Chapter 10: Biodiversity 3: Animals
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Sample Questions
Q1) Which of the following unique characteristics is found in many chordates,but not all,at some point in their development?
A)Backbone
B)Dorsal nerve chord
C)Post anal tail
D)Pharyngeal slits
Q2) How might an early primate's environment lead to the evolution of a large brain in relation to body size?
Q3) Sponges are found ________.
A)only in seawater
B)mostly in seawater
C)only in fresh water
D)mostly in fresh water
Q4) Which subgroup of mammals raises their young in pouches?
A)Marsupials
B)Monotremes
C)Eutherians
D)Cetaceans
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Chapter 11: Human Body Systems
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Sample Questions
Q1) What is the role of the villi?
A)To absorb small nutrient molecules from the digestive tract
B)To move food along the digestive tract
C)To secrete digestive enzymes into the digestive tract
D)To secrete water into the digestive tract
Q2) What type of disorder is AIDS?
A)Autoimmune disease
B)Allergic reaction
C)Immune rejection
D)Immunodeficiency
Q3) There are many organs and glands of the endocrine system,but which one is the master controller?
A)Pituitary
B)Thyroid
C)Hypothalamus
D)Pancreas
Q4) Describe the two separate metabolic needs that are met when a full-grown person eats a balanced diet.
Q5) Why can you not catch the same cold twice but a new cold will make you sick for a week or two?
13
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Chapter 12: Ecology
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Sample Questions
Q1) Which of the following is not an example of an abiotic factor?
A)Temperature
B)Energy
C)Bacteria
D)Nutrients
Q2) Imagine a hypothetical population of elephants and rabbits in which both species remain at carrying capacity over many generations.Who would have more offspring that survive to be adults and reproduce during their lifetime,a mating pair of elephants or a mating pair of rabbits? Explain your answer.
Q3) A wolf eats a rabbit that eats grass.The wolf is a ________.
A)primary consumer
B)detritivore
C)producer
D)secondary consumer
Q4) What is the name of the theoretical maximum rate of population growth?
A)Logistic
B)Speculative
C)Factorial
D)Exponential
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