500 likes | 656 Views
Biology 4. Biology 4. Biophilia. What is Life?. Properties of Life. Reproduction. Order. Growth and Development. Use Energy. Response to the Environment. Homeostasis. Evolutionary Adaptations. Smallest Unit of Life. Cell or Virus????. Prokaryotic Cells DNA and Ribosomes No nucleus
E N D
Biology 4 • Biophilia
Smallest Unit of Life • Cell or Virus????
Prokaryotic Cells DNA and Ribosomes No nucleus No membrane bound Organelles Eukaryotic Cells DNA and Ribosomes Nucleus Membrane bound Organelles Smallest Unit of Life – The Cell
Emergent Properties • Novel properties emerge that are not present at the level below • Reductionism
Subatomic Particles Atoms Molecules Organelles Cells Tissues Organs Organ Systems Organisms Populations Communities Ecosystems Biomes Biosphere Biology Hierarchy
Biology Hierarchy • K • P • C • O • F • G • S
Biology Hierarchy • Kingdom • Phylum • Class • Order • Family • Genus • Species
Biology Hierarchy • Kingdom - Animalia • Phylum • Class • Order • Family • Genus • Species
Biology Hierarchy • Kingdom - Animalia • Phylum - Chordata • Class • Order • Family • Genus • Species
Biology Hierarchy • Kingdom - Animalia • Phylum - Chordata • Class - Aves • Order • Family • Genus • Species
Biology Hierarchy • Kingdom - Animalia • Phylum - Chordata • Class - Aves • Order - Falconiformes • Family • Genus • Species
Biology Hierarchy • Kingdom - Animalia • Phylum - Chordata • Class - Aves • Order - Falconiformes • Family - Accipitridae • Genus • Species
Biology Hierarchy • Kingdom - Animalia • Phylum - Chordata • Class - Aves • Order - Falconiformes • Family - Accipitridae • Genus - Haliaeetus • Species
Biology Hierarchy • Kingdom - Animalia • Phylum - Chordata • Class - Aves • Order - Falconiformes • Family - Accipitridae • Genus - Haliaeetus • Species - leucocephalus
Biology Hierarchy • Kingdom - Animalia • Phylum - Chordata • Class - Aves • Order - Falconiformes • Family - Accipitridae • Genus - Haliaeetus • Species - leucocephalus
Biology Hierarchy • Domain • Kingdom • Phylum • Class • Order • Family • Genus • Species
Domains Domain Archaea
Domain: Bacteria • Prokaryotic • Cell Walls - Peptidoglycan • Most Bacteria
Domain: Archaea • Prokaryotic • Extreme Conditions • Make DNA and Proteins like eukaryotic cells
Eukaryotic Cells Domain: Eukarya
Usually Unicellular Some have Cell Walls of Cellulose Kingdom: Protista
Multicellular Cell Walls of Chitin Decomposers Kingdom: Fungi
Multicellular Cell Walls of Cellulose Autotrophs Kingdom: Plantae
Multicellular No Cell Walls Heterotrophs Kingdom: Animalia
What is Science? • Science = To Know • Science is a process • Scientific Method
What is Science? • Science = To Know • Science is a process • Scientific Method
Scientific Method • Observation • Senses / Lit search • Hypothesis • Testable and Repeatable • Null hypothesis – No significant difference • Alternative hypothesis – significant difference • Experiment • Sample Size = 30 • Control, change one variable • Threshold criterion (0.05) • Analysis • Quantitative (Statistical testing) • Conclusion
Are they the same? • Hypothesis • Theory • Law
Probability in Science • Science eliminates possibilities
Probability in Science • Do the colors make them harder to see? • Is there a benefit looking like a poisonous species?
Probability in Science • Science eliminates possibilities
Probability in Science • Science eliminates possibilities
Evolution • Change over time
Themes • The Cell • Heritable Info • Emergent Properties • Regulation • Interaction with the Environment
Themes • Energy and Life • Unity and Diversity • Structure and Function • Scientific Inquiry • Science, Technology, and Society • Evolution