Textbook Question
Using the figure below, describe the stages that may have led to the origin of life.
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Ch. 15 Tracing Evolutionary History
Taylor, Simon, Dickey, Hogan10th EditionCampbell Biology: Concepts & ConnectionsISBN: 9780136538783
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Table of contents
- Ch. 1 Biology: The Study of Scientific Life19
- Ch. 2 The Chemical Basis of Life17
- Ch. 3 The Molecules of Cells21
- Ch. 4 A Tour of the Cell20
- Ch. 5 The Working Cell17
- Ch. 6 How Cells Harvest Chemical Energy18
- Ch. 7 Photosynthesis: Using Light to Make Food15
- Ch. 8 The Cellular Basis of Reproduction and Inheritance22
- Ch. 9 Patterns of Inheritance17
- Ch. 10 Molecular Biology of the Gene13
- Ch. 11 How Genes Are Controlled13
- Ch. 12 DNA Technology and Genomics23
- Ch. 13 How Populations Evolve17
- Ch. 14 The Origin of Species19
- Ch. 15 Tracing Evolutionary History18
- Ch. 16 Microbial Life: Prokaryotes and Protists16
- Ch. 17 The Evolution of Plant and Fungal Diversity15
- Ch. 18 The Evolution of Invertebrate Diversity13
- Ch. 19 The Evolution of Vertebrate Diversity18
- Ch. 20 Unifying Concepts of Animal Structure and Function11
- Ch. 21 Nutrition and Digestion16
- Ch. 22 Gas Exchange16
- Ch. 23 Circulation17
- Ch. 24 The Immune System16
- Ch. 25 Control of Body Temperature and Water Balance20
- Ch. 26 Hormones and the Endocrine System10
- Ch. 27 Reproduction and Embryonic Development12
- Ch. 28 Nervous Systems10
- Ch. 29 The Senses12
- Ch. 30 How Animals Move19
- Ch. 31 Plant Structure, Growth, and Reproduction9
- Ch. 32 Plant Nutrition and Transport12
- Ch. 33 Control Systems in Plants15
- Ch. 34 The Biosphere: An Introduction to Earth's Diverse Environments15
- Ch. 35 Behavioral Adaptations to the Environment12
- Ch. 36 Population Ecology15
- Ch. 37 Communities and Ecosystems14
- Ch. 38 Conservation Biology14
Taylor, Simon, Dickey, Hogan10th EditionCampbell Biology: Concepts & ConnectionsISBN: 9780136538783Not the one you use?Change textbook
Chapter 15, Problem 2
Fill in this concept map about systematics.
Verified step by step guidance1
Step 1: Start by identifying the main concept, 'Systematics,' which is the study of evolutionary relationships among organisms.
Step 2: For box (a), recognize that evolutionary history is called 'phylogeny,' which traces the lineage and relationships of organisms.
Step 3: For box (b), evolutionary history is based on 'morphological and molecular data,' which includes physical traits and genetic information.
Step 4: For box (c), the images of limbs represent 'homologous structures,' which are anatomical features shared due to common ancestry.
Step 5: For box (e), evolutionary relationships are shown in 'phylogenetic trees,' which visually represent hypotheses about the evolutionary connections among species.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Systematics
Systematics is a branch of biology that deals with the classification and evolutionary relationships among organisms. It aims to understand the diversity of life by tracing the evolutionary history of species and generating hypotheses about their relationships. This field combines data from various sources, including morphology, genetics, and fossil records, to construct phylogenetic trees that illustrate these relationships.
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06:57
Systematics
Cladistics
Cladistics is a method within systematics that classifies organisms based on shared derived characteristics, known as synapomorphies. This approach emphasizes the importance of evolutionary lineage and aims to create a branching diagram, or cladogram, that reflects the evolutionary pathways of different species. Cladistics helps in identifying groups of organisms that share a common ancestor, thus providing insights into their evolutionary history.
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03:52Cladistics Example 1
Phylogenetic Trees
Phylogenetic trees are graphical representations that depict the evolutionary relationships among various species or groups. They illustrate how species diverged from common ancestors over time, with branches representing lineages and nodes indicating points of divergence. These trees are constructed using data from morphological traits, genetic sequences, and fossil evidence, allowing scientists to visualize and analyze the evolutionary history of life on Earth.
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04:13Building Phylogenetic Trees Example 2
Related Practice
Textbook Question
You set your time machine for 3 billion years ago and push the start button. When the dust clears, you look out the window. Which of the following describes what you would probably see?
a. A cloud of gas and dust in space
b. Green scum in the water
c. Land and water sterile and devoid of life
d. An endless expanse of red-hot molten rock
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Textbook Question
Ancient photosynthetic prokaryotes were very important in the history of life because they
a. Produced the oxygen in the atmosphere.
b. Are the oldest-known archaea.
c. Were the first multicellular organisms.
d. Showed that life could evolve around deep-sea vents.
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Textbook Question
The animals and plants of India are very different from the species in nearby Southeast Asia. Why might this be true?
a. India was once covered by oceans and Asia was not.
b. India is in the process of separating from the rest of Asia.
c. Life in India was wiped out by ancient volcanic eruptions.
d. India was a separate continent until about 45 million years ago.
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