Exam 21: The Origin and Evolutionary History of Life
Exam 1: A View of Life72 Questions
Exam 2: Atoms and Molecules: the Chemical Basis of Life75 Questions
Exam 3: The Chemistry of Life: Organic Compounds75 Questions
Exam 4: Organization of the Cell76 Questions
Exam 5: Biological Membranes73 Questions
Exam 6: Cell Communication73 Questions
Exam 7: Energy and Metabolism73 Questions
Exam 8: How Cells Make Atp: Energy-Releasing Pathways75 Questions
Exam 9: Photosynthesis: Capturing Light Energy79 Questions
Exam 10: Chromosomes, Mitosis, and Meiosis78 Questions
Exam 11: The Basic Principles of Heredity87 Questions
Exam 12: DNA: The Carrier of Genetic Information83 Questions
Exam 13: Gene Expression92 Questions
Exam 14: Gene Regulation86 Questions
Exam 15: DNA Technology and Genomics98 Questions
Exam 16: Human Genetics and the Human Genome82 Questions
Exam 17: Developmental Genetics90 Questions
Exam 18: Introduction to Darwinian Evolution66 Questions
Exam 19: Evolutionary Change in Populations72 Questions
Exam 20: Speciation and Macroevolution72 Questions
Exam 21: The Origin and Evolutionary History of Life71 Questions
Exam 22: The Evolution of Primates73 Questions
Exam 23: Understanding Diversity: Systematics70 Questions
Exam 24: Viruses and Subviral Agents55 Questions
Exam 25: Bacteria and Archaea63 Questions
Exam 26: Protists76 Questions
Exam 27: Seedless Plants76 Questions
Exam 28: Seed Plants76 Questions
Exam 29: The Fungi78 Questions
Exam 30: An Introduction to Animal Diversity71 Questions
Exam 31: Sponges, Cnidarians, Ctenophores, and Protostomes114 Questions
Exam 32: The Deuterostomes79 Questions
Exam 33: Plant Structure, Growth, and Development94 Questions
Exam 34: Leaf Structure and Function90 Questions
Exam 35: Stem Structure and Transport91 Questions
Exam 36: Roots and Mineral Nutrition105 Questions
Exam 37: Reproduction in Flowering Plants107 Questions
Exam 38: Plant Developmental Responses to External and Internal Signals113 Questions
Exam 39: Animal Structure and Function: an Introduction106 Questions
Exam 40: Protection, Support, and Movement75 Questions
Exam 41: Neural Signaling76 Questions
Exam 42: Neural Regulation81 Questions
Exam 43: Sensory Systems83 Questions
Exam 44: Internal Transport119 Questions
Exam 45: The Immune System: Internal Defense93 Questions
Exam 46: Gas Exchange123 Questions
Exam 47: Processing Food and Nutrition127 Questions
Exam 48: Osmoregulation and Disposal of Metabolic Wastes111 Questions
Exam 49: Endocrine Regulation87 Questions
Exam 50: Reproduction121 Questions
Exam 51: Animal Development117 Questions
Exam 52: Animal Behavior91 Questions
Exam 53: Introduction to Ecology: Population Ecology99 Questions
Exam 54: Community Ecology91 Questions
Exam 55: Ecosystems and the Biosphere101 Questions
Exam 56: Ecology and the Geography of Life99 Questions
Exam 57: Biological Diversity and Conservation Biology82 Questions
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Match the period with the corresponding biological events.
Premises:
Gymnosperms common, large dinosaurs
Responses:
Devonian 488 mya
Quaternary 2.6 mya
Carboniferous 359 mya
Correct Answer:
Premises:
Responses:
Free
(Matching)
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Describe the four requirements for chemical evolution and why each was essential.
Free
(Essay)
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Correct Answer:
Concepts to Consider: Little or no free oxygen; a source of energy; chemical building blocks including water, dissolved inorganic minerals, and gases; plenty of time
Which theory states that eukaryotic organelles originated as prokaryotes that survived ingestion by a host cell and ultimately evolved mutualistic relationships with the host cell?
Free
(Multiple Choice)
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Correct Answer:
A
One of the most significant steps in the evolution of true cells from macromolecular assemblages was the evolution of:
(Multiple Choice)
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A significant reduction in the amount of which gas would allow more ultraviolet radiation to reach Earth's surface?
(Multiple Choice)
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Which scientist worked on the concept of simple organic molecules?
(Multiple Choice)
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The first photosynthetic organisms to obtain hydrogen by splitting water were the cyanobacteria.
(True/False)
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Which hypothesis states that life developed from nonliving matter?
(Multiple Choice)
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Which period of Earth represents when evolution was progressing at the most rapid rate, as evidenced by fossils such as those of the Burgess Shale?
(Multiple Choice)
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Mitochondria and chloroplasts have their own circular DNA and translational components.
(True/False)
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What feature of a dinosaur determines whether it is a saurischian or an ornithischian dinosaur?
(Multiple Choice)
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Presently, it is thought that organic polymers may have formed and accumulated on:
(Multiple Choice)
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What are the protobionts produced by abiotically produced polypeptides?
(Multiple Choice)
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The first cells were most likely heterotrophic anaerobes because:
(Multiple Choice)
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What kind of organisms likely perished due to the increase of oxygen in the atmosphere three billion years ago?
(Multiple Choice)
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Describe the distinguishing organisms and major biological events associated with the following geological time units.
A. Paleozoic era
B. Cenozoic era
(Essay)
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Provide at least two types of evidence that support the hypothesis of endosymbiosis.
(Essay)
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Match the period with the corresponding biological events.
Premises:
Extinction of large mammals; age of Homo sapiens
Responses:
Quaternary 2.6 mya
Carboniferous 359 mya
Devonian 488 mya
Correct Answer:
Premises:
Responses:
(Matching)
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