Textbook Question
A lamprey, a shark, a lizard, and a rabbit share all the following characteristics except
a. Pharyngeal slits in the embryo or adult.
b. Vertebrae.
c. Hinged jaws.
d. A dorsal, hollow nerve cord.
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Ch. 19 The Evolution of Vertebrate Diversity
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
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Taylor, Simon, Dickey, Hogan 10th EditionCh. 19 The Evolution of Vertebrate DiversityProblem 6
Taylor, Simon, Dickey, Hogan 10th EditionCh. 19 The Evolution of Vertebrate DiversityProblem 6Chapter 19, Problem 6
Which of the following correctly lists possible ancestors of humans from the oldest to the most recent?
a. Homo erectus, Australopithecus, Homo habilis
b. Australopithecus, Homo habilis, Homo erectus
c. Australopithecus, Homo erectus, Homo habilis
d. Homo ergaster, Homo erectus, Homo neanderthalensis
Verified step by step guidance1
Understand the evolutionary timeline of human ancestors. The evolution of humans involves a sequence of species that appeared at different times, with Australopithecus being one of the earliest known ancestors.
Recall that Australopithecus lived approximately 4 to 2 million years ago and is considered one of the earliest hominins, predating the genus Homo.
Homo habilis, often referred to as 'handy man,' appeared around 2.4 to 1.4 million years ago and is considered one of the earliest members of the genus Homo.
Homo erectus, which appeared around 1.9 million years ago and persisted until about 110,000 years ago, is a later ancestor in the evolutionary timeline.
Compare the options provided and arrange the species in chronological order based on the timeline: Australopithecus (oldest), followed by Homo habilis, and then Homo erectus (most recent).
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Human Evolution
Human evolution refers to the lengthy process of change by which people originated from apelike ancestors. This process involves various species of hominins, each contributing to the development of modern humans, Homo sapiens. Understanding the timeline and relationships among these species is crucial for identifying the correct order of ancestors.
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The Human Population
Hominin Classification
Hominins are a group of species that includes modern humans and our closest extinct relatives. Key species include Australopithecus, Homo habilis, and Homo erectus, each representing significant stages in human evolution. Familiarity with these classifications helps in determining the correct lineage and chronological order of these ancestors.
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Phylogenetic Tree
A phylogenetic tree is a diagram that represents evolutionary relationships among various biological species based on similarities and differences in their physical or genetic characteristics. This tool is essential for visualizing the evolutionary pathways and timelines of hominins, aiding in the understanding of which species are ancestors of modern humans and their chronological order.
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Related Practice
Textbook Question
Why were the Tiktaalik fossils an exciting discovery for scientists studying tetrapod evolution?
a. They are the earliest frog-like animal discovered to date.
b. They show that tetrapods successfully colonized land much earlier than previously thought.
c. They have a roughly equal combination of fishlike and tetrapod-like characteristics.
d. They demonstrate conclusively that limbs evolved as lobe-fins dragged themselves from pond to pond during droughts.
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Textbook Question
Fossils suggest that the first major trait distinguishing hominins from other primates was
a. A larger brain.
b. Erect posture.
c. Forward-facing eyes with depth perception.
d. Tool making.
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Textbook Question
Which of these is not a member of the anthropoids?
a. Chimpanzee
b. Tarsier
c. Human
d. New World monkey
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Textbook Question
Studies of DNA support which of the following?
a. Members of the group called australopiths were the first to migrate from Africa.
b. Homo sapiens originated in Africa.
c. Sahelanthropus was the earliest hominin.
d. Chimpanzees are more similar to gorillas and orangutans than to humans.
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Textbook Question
The earliest members of the genus Homo
a. Had a larger brain compared to other hominins.
b. Probably hunted dinosaurs.
c. Lived about 4 million years ago.
d. Were the first hominins to be bipedal.
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