
External
Life Science for Middle School (CK-12)
- Author
- CK12
- Publisher
- CK12
- Source
- LibreTexts
- License
- CK-12
- Language
- EN
- Category
- Basic Sciences
Contents· 277 sections
- 01: Introduction to Life Science
- 1.01: Scientific Ways of Thinking
- 1.02: Fields in the Life Sciences
- 1.03: Scientific Method
- 1.04: Scientific Theories
- 1.05: Basic and Applied Science
- 1.06: Microscope
- 1.07: Safety in the Life Sciences
- 1.08: Characteristics of Life
- 1.09: Organization of Living Things
- 1.11: Domain
- 02: Cell Biology
- 2.01: Diffusion
- 2.02: Passive Transport
- 2.03: Active Transport
- 2.04: Photosynthesis
- 2.05: Light Reactions
- 2.06: Cellular Respiration
- 2.07: Cellular Respiration Process
- 2.08: Cellular Respiration and Photosynthesis
- 2.09: Fermentation
- 2.10: Cell Division
- 2.11: Elements and Compounds
- 2.12: Cell Cycle
- 2.13: Mitosis
- 2.14: Reproduction
- 2.15: Meiosis
- 2.16: Mitosis vs. Meiosis
- 2.17: Organic Compounds
- 2.18: Cell Theory
- 2.19: Prokaryotic and Eukaryotic Cells
- 2.20: Cell Membrane
- 2.21: Nucleus
- 2.22: Organelles
- 2.23: Plant Cell Structure
- 2.24: Cell Transport
- 03: Molecular Biology and Genetics
- 3.01: Mutation
- 3.02: Molecular Genetics Overview
- 3.03: Pedigree
- 3.04: Sex-linked Inheritance
- 3.05: Non-Mendelian Inheritance
- 3.06: Polygenic Traits
- 3.07: Genetic Disorders
- 3.08: Recombinant DNA
- 3.09: Cloning
- 3.10: Human Genome
- 3.11: Pea Plants
- 3.12: Gene Therapy
- 3.13: Agriculture
- 3.14: Mendel's Laws
- 3.15: Punnett Squares
- 3.16: DNA
- 3.17: DNA Structure and Replication
- 3.18: RNA
- 3.19: Protein Synthesis
- 3.20: Transcription
- 3.21: Translation
- 04: Evolution
- 4.01: Theory of Evolution
- 4.02: Influences on Darwin
- 4.03: Natural Selection
- 4.04: Fossils
- 4.05: Evolution Evidence
- 4.06: Molecular Evidence
- 4.07: Microevolution and Macroevolution
- 4.08: Hardy-Weinberg
- 4.09: Origin of Species
- 4.10: Tracing Evolution
- 4.11: First Cell
- 4.12: Geological Time Scale
- 05: Viruses and Prokaryotes
- 5.01: Section 1-
- 5.02: Section 2-
- 5.03: Section 3-
- 5.04: Section 4-
- 5.05: Section 5-
- 5.06: Section 6-
- 5.7: Types of Archaea
- 06: Protists and Fungi
- 6.01: Section 1-
- 6.02: Section 2-
- 6.03: Section 3-
- 6.04: Section 4-
- 6.05: Section 5-
- 6.06: Section 6-
- 6.07: Fungi
- 6.08: Fungi Structure
- 6.09: Fungi Reproduction
- 6.10: Fungi Classification
- 6.11: Fungi Symbiosis
- 6.12: Use of Fungi
- 07: Plants
- 7.01: Section 1-
- 7.02: Section 2-
- 7.03: Section 3-
- 7.04: Section 4-
- 7.05: Section 5-
- 7.06: Section 6-
- 7.07: Life Cycle of Seedless Vascular Plants
- 7.08: Importance of Plants
- 7.09: Seed Dispersal
- 7.10: Seed Plants
- 7.11: Angiosperm
- 7.12: Plant Hormones
- 7.13: Tropisms
- 7.14: Plant Adaptations
- 08: Animals
- 8.01: Section 1-
- 8.02: Section 2-
- 8.03: Section 3-
- 8.04: Section 4-
- 8.05: Section 5-
- 8.06: Section 6-
- 8.7: Communication
- 09: Invertebrates
- 9.01: Section 1-
- 9.02: Section 2-
- 9.03: Section 3-
- 9.04: Section 4-
- 9.05: Section 5-
- 9.06: Section 6-
- 9.07: Mollusks
- 9.08: Types of Mollusks
- 9.09: Importance of Mollusks
- 9.10: Arthropods
- 9.11: Crustaceans
- 9.12: Centipedes and Millipedes
- 9.13: Arachnids
- 9.14: Importance of Arthropods
- 9.15: Insects
- 9.16: Insect Food
- 9.17: Insect Reproduction
- 9.18: Importance of Insects
- 9.20: Echinoderms
- 9.21: Types of Echinoderms
- 9.22: Importance of Echinoderms
- 10: Vertebrates
- 10.01: Section 1-
- 10.02: Section 2-
- 10.03: Section 3-
- 10.04: Section 4-
- 10.05: Section 5-
- 10.06: Section 6-
- 10.07: Amphibians
- 10.08: Salamanders
- 10.09: Frogs and Toads
- 10.10: Amphibian Evolution and Ecology
- 10.11: Reptiles
- 10.12: Lizards and Snakes
- 10.13: Crocodilia
- 10.14: Turtles
- 10.15: Importance of Reptiles
- 10.16: Birds
- 10.17: Bird Reproduction
- 10.18: Bird Diversity
- 10.19: Importance of Birds
- 10.20: Mammal Overview
- 10.21: Mammal Reproduction
- 10.22: Mammal Classification
- 10.23: Importance of Mammals
- 10.24: Primates
- 10.25: Primates and Humans
- 11: Human Biology
- 11.01: Section 1-
- 11.02: Section 2-
- 11.03: Section 3-
- 11.04: Section 4-
- 11.05: Section 5-
- 11.06: Section 6-
- 11.07: Bone Health
- 11.08: Joints
- 11.09: Muscles
- 11.10: Skeletal Muscles
- 11.11: Exercise
- 11.12: Food and Nutrients
- 11.13: Types of Nutrients
- 11.14: Vitamins and Minerals
- 11.15: Balanced Eating
- 11.16: Digestive System
- 11.17: Digestive System Organs
- 11.18: Digestive System Enzymes
- 11.19: Digestive System Bacteria
- 11.20: Digestive System Health
- 11.21: Cardiovascular System
- 11.22: Lymphatic System
- 11.23: Heart
- 11.24: Blood Vessels
- 11.25: Blood Pressure
- 11.26: Blood
- 11.27: Blood Type
- 11.28: Blood Diseases
- 11.29: Cardiovascular Diseases
- 11.30: Cardiovascular Health
- 11.31: Respiratory System
- 11.32 Respiratory System Organs
- 11.33: Respiratory Systems Disorder
- 11.34: Respiratory System Health
- 11.35: Breathing
- 11.36: Excretory System
- 11.37: Urinary System
- 11.38: Kidneys
- 11.39: Excretory System Diseases
- 11.40: Nervous System
- 11.41: Nerve Impulse
- 11.42: Central Nervous System
- 11.43: Peripheral Nervous System
- 11.44: Nervous System Diseases
- 11.45: Nervous System Injuries
- 11.46: Nervous System Health
- 11.47: Vision
- 11.48: Eyes
- 11.49: Vision Correction
- 11.50: Hearing and Balance
- 11.51: Touch
- 11.52: Taste and Smell
- 11.53: Pathogen
- 11.54: HIV AIDS
- 11.55: Infectious Diseases
- 11.56: Carcinogens and Cancer
- 11.57: Diabetes
- 11.58: Autoimmune Disease
- 11.59: Noninfectious Diseases
- 11.60: Innate Immune System
- 11.61: Inflammatory Response
- 11.62: Humoral Response
- 11.63: Immunity
- 11.64: Male Reproductive System
- 11.65: Male Reproductive Organs
- 11.66: Sperm
- 11.67: Female Reproductive System
- 11.68: Female Reproductive Organs
- 11.69: Egg Cells
- 11.70: Menstrual Cycle
- 11.71: Fertilization
- 11.72: Pregnancy
- 11.73: Infancy and Childhood
- 11.74: Puberty and Adolescence
- 11.75: Adulthood
- 11.76: STIs
- 11.77: Reproductive System Disorders
- 11.78: Reproductive System Health
- 12: Ecology
- 12.01: Section 1-
- 12.02: Section 2-
- 12.03: Section 3-
- 12.04: Section 4-
- 12.05: Section 5-
- 12.06: Section 6-
- 12.07: Competition
- 12.08: Predation
- 12.09: Symbiosis
- 12.10: Ecosystems
- 12.11: Habitat and Niche
- 12.12: Biome
- 12.13: Terrestrial Biomes
- 12.14: Aquatic Biomes
- 12.15: Biosphere
- 12.16: Producer
- 12.17: Consumers and Decomposers
- 12.18: Food Chain
- 12.19: Energy Flow
- 12.20: Succession
- 12.21: Water Cycle
- 12.22: Carbon Cycle
- 12.23: Nitrogen Cycle
- 12.24: Air Pollution
- 12.25: Indoor Air Pollution
- 12.26: Health Hazards of Air Pollution
- 12.27: Water Pollution
- 12.28: Preserving Water Sources
- 12.29: Renewable Resources
- 12.30: Nonrenewable Resources
- 12.31: Conservation
- 12.32: Habitat Destruction
- 12.33: Importance of Biodiversity
- 12.34: Mass Extinction