CK-12 Foundation
Ck 12: Life Science: 8.1 Animal Behavior
Explore many different types of animal behavior.
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Ck 12: Life Science: 7.14 Plant Adaptations
Learn about some adaptations plants have in order to survive.
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Ck 12: Life Science: 7.13 Tropisms
Learn how plants respond to different environmental stimuli.
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Ck 12: Life Science: 7.1 Plant Characteristics
A textbook tutorial over biological characteristics of plants.
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Ck 12: Life Science: 6.11 Fungi Symbiosis
Explore the symbiotic relationships involving fungi.
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Ck 12: Life Science: 7.12 Plant Hormones
Understand how plant hormones allow plants to live in their environment.
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Ck 12: Life Science: 7.11 Angiosperm
Understand the characteristics and ecology of angiosperms.
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Ck 12: Life Science: 7.10 Seed Plants
Learn the characteristics and ecology of seed plants.
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Ck 12: Life Science: 7.9 Seed Dispersal
Learn how plants disperse their seeds for successful reproduction.
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Ck 12: Life Science: 7.8 Importance of Plants
Discover the importance of plants to the ecosystem nad to humans.
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Ck 12: Life Science: 8.7 Communication
Learn about the many forms of animal communication.
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Ck 12: Life Science: 8.6 Reproductive Behavior
Understand different types of animal reproductive behavior.
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Ck 12: Life Science: 8.5 Cyclic Behavior
Explore different types of cycles in animal behavior.
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Ck 12: Life Science: 8.3 Learned Behavior
Understand different types of learned behavior among animals and humans.
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Ck 12: Life Science: 8.2 Innate Behavior
Explore innate behaviors in animals and humans.
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Ck 12: Life Science: 11.60 Innate Immune System
Discover the function of the innate immune system.
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Ck 12: Life Science: 11.58 Autoimmune Disease
Learn about some autoimmune disorders that affect human health.
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Ck 12: Life Science: 11.56 Carcinogens and Cancer
Explore carcinogens and their relation to cancer.
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Ck 12: Life Science: 11.53 Pathogen
Understand how pathogens cause infections in humans.