A screencast tutorial which describes the major characteristics of animals with backbones called vertebrates. [1:38]
Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.
By the end of this section, you will be able to do the following:
Describe the important difference between the life cycle of amphibians and the life cycles of other vertebrates
Distinguish between the characteristics of Urodela, Anura, and Apoda
Describe the evolutionary history of amphibians
By the end of this section, you will be able to do the following:
Describe the evolutionary history of birds
Describe the derived characteristics in birds that facilitate flight
By the end of this section, you will be able to do the following:
Describe the distinguishing characteristics of chordates
Identify the derived characters of craniates that sets them apart from other chordates
Describe the developmental fate of the notochord in vertebrates
By the end of this section, you will be able to do the following:
Describe the difference between jawless and jawed fishes
Discuss the distinguishing features of sharks and rays compared to other modern fishes
By the end of this section, you will be able to do the following:
Name and describe the distinguishing features of the three main groups of mammals
Describe the likely line of evolutionary descent that produced mammals
List some derived features that may have arisen in response to mammals’ need for constant, high-level metabolism
Identify the major clades of eutherian mammals
By the end of this section, you will be able to do the following:
Describe the main characteristics of amniotes
Explain the difference between anapsids, synapsids, and diapsids, and give an example of each
Identify the characteristics of reptiles
Discuss the evolution of reptiles
By the end of this section, you will be able to do the following:
Describe the derived features that distinguish primates from other animals
Describe the defining features of the major groups of primates
Identify the major hominin precursors to modern humans
Explain why scientists are having difficulty determining the true lines of descent in hominids
Biology is designed for multi-semester biology courses for science majors. It is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some content has been strategically condensed while maintaining the overall scope and coverage of traditional texts for this course. Instructors can customize the book, adapting it to the approach that works best in their classroom. Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.
Covers the characteristics and traits of mammals.
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Describes how mammals maintain their body temperature.
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Covers the nine classes of vertebrates and their distinguishing traits.
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An overview of vertebrate evolution and when important vertebrate traits evolved.
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Discusses three types of reproductive strategies for vertebrates.
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This digital textbook covers core biology concepts and includes interactive features, real-world examples, videos, and study guides.
A free CK-12 account is required to view all materials.
Submitted as part of the California Learning Resource Network (CLRN) Phase 3 Digital Textbook Initiative (CA DTI3), CK-12 Foundation’s high school Biology FlexBook covers cell biology, genetics, evolution, ecology, botany, zoology, and physiology. This digital textbook was reviewed for its alignment with California content standards.
