The following list shows the chapter-level topics and assignments for the course. To see all of the course pages, visit the Table of Contents.

Module 1: Introduction to Biology

• Characteristics of Life
• Prokaryotes and Eukaryotes
• Taxonomy
• The Study of Biology

Module 2: Viruses

• Viral Evolution, Morphology, and Classification
• Virus Infections and Hosts
• Prevention and Treatment of Viral Infections
• Prions and Viroids

Module 3: History of Life

• Evolution
• Speciation
• The Evolution of Populations
• Phylogenies and the History of Life

Module 4: Prokaryotes

• Prokaryotic Diversity
• The Structure of Prokaryotes
• Prokaryotic Metabolism
• Bacterial Diseases in Humans
• Beneficial Prokaryotes

Module 5: Protists

• Characteristics of Protists
• Groups of Protists
• Ecology of Protists

Module 6: Fungi

• Characteristics of Fungi
• Classifications of Fungi
• Ecology of Fungi
• Fungal Parasites and Pathogens

Module 7: Plant Diversity

• Seedless Plants
• Seed Plants

Module 8: Plant Structure and Function

• Plant Structures
• Transport of Water and Solutes in Plants
• Plant Sensory Systems and Responses
• Plant Growth
• Plant Nutrition

Module 9: Plant Reproduction

• Reproductive Development and Structure
• Asexual Reproduction in Plants
• Sexual Reproduction in Plants

Module 10: Animal Diversity

• Evolutionary History of the Animal Kingdom
• Animal Phylogeny
• Animal Form and Function
• Animal Primary Tissues
• Animal Reproduction
• Homeostasis

Module 11: Invertebrates

• Phylum Porifera
• Phylum Cnidaria
• Superphylum Lophotrochozoa
• Superphylum Ecdysozoa
• Superphylum Deuterostomia

Module 12: Vertebrates

• Chordates
• Fishes
• Amphibians
• Amniotes
• Reptiles
• Birds
• Mammals

Module 13: Overview of Body Systems

• Integration of Systems
• Control Systems
• Cell Maintenance Systems
• Support Systems

Module 14: The Nervous System

• Components of the Nervous System
• Neuron Communication
• The Central Nervous System
• The Peripheral Nervous System
• Nervous System Disorders

Module 15: The Endocrine System

• Types of Hormones
• How Hormones Work
• Regulation of Body Processes
• Endocrine Glands

Module 16: The Reproductive System

• Reproduction Methods
• Human Reproductive Anatomy
• Hormonal Control of Human Reproduction
• Fertilization
• Early Embryonic Development
• Human Pregnancy and Birth

Module 17: Sensory Systems

• The Senses
• Somatosensation
• Taste and Smell
• Hearing and Vestibular Sensation
• Vision

Module 18: The Circulatory System

• The Circulatory System
• Structure and Function of Blood
• The Mammalian Heart
• Blood Flow and Blood Pressure Regulation

Module 19: The Respiratory System

• Systems of Gas Exchange
• Gas Exchange across Respiratory Surfaces
• Breathing
• Transport of Gases in Human Bodily Fluids

Module 20: The Immune System

• The Innate Immune Response
• The Adaptive Immune Response
• Antibodies

Module 21: The Digestive System

• Digestive Systems
• Nutrition and Energy Production
• Digestive System Processes and Regulation

Module 22: The Excretory System

• Osmoregulation and Osmotic Balance
• Kidneys and Osmoregulatory Organs
• Excretion Systems

Module 23: The Musculoskeletal System

• Skeletal Systems
• Bones
• Joints and Skeletal Movement
• Muscle Contraction and Locomotion

Module 24: The Integumentary System

• Structure and Function of Skin
• Accessory Structures of the Skin
• Functions of the Integumentary System
• Diseases, Disorders, and Injuries of the Integumentary System

Module 25: Ecology of Living Things

• The Scope of Ecology
• Biotic and Abiotic Factors
• Biomes
• Population Ecology
• Community Ecology

Module 26: Ecology and the Environment

• Energy in the Environment
• Biogeochemical Cycles
• Climate Change
• Conservation Biology and Biodiversity