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Biosphere
Syllabus
Course Calendar
Scientific Method
Alive
Origins
Water
Biomes
Food Webs
Biodiversity
Population Growth
Cells
Food (Biomolecules)
Enzymes
Cell Theory
Cell Membrane
Mitosis
Meiosis
Mendel
DNA and Protein Synthesis
Genetic Engineering
Early Life
Evolution
Phylogeny
Viruses
Prokaryota (Bacteria)
Protista
Fungi
Invertebrates
Aquatic Biomes
Porifera (Sponges)
Cnidaria (Jellyfish)
Playthelminthes (Flatworms)
Pseudocoelomates (Roundworms)
Mollusca (Sea Shells)
Annelida (Segmented Worms)
Arthropoda (Insects)
Echinodermata (Starfish)
Vertebrates
Vertebrates
Fish
Amphibia (Frogs)
Reptilia (Snakes)
Aves (Birds)
Mammalia (Mammals)
Humans
Human Systems
Integumentary System
Skeletal System
Muscular System
Circulatory System
Lymphatic System
Respiratory System
Digestive System
Metabolism
Urinary System
Immune System
Reproductive System
Endocrine System
Central Nervous System
Peripheral Nervous System
Plants
Rhizosphere
Nonvascular Plants
Vascular Plants
Flowering Plants
Photosynthesis
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What Does It Mean to Be Alive?
Introduction to this section:
Reading:
Tracing the origin of life
New models shed light on life's origin
Scientists study life origins by simulating a cosmic evolution
Origin of life: Did Darwinian evolution begin before life itself?
Study adds to evidence that viruses are alive
Video 1: Characteristics of Life (2:08)
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Video 2: The Definition of Life - Star Trek TNG (4:50)
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