Biology 4
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????
Smallest Unit of Life – The Cell Prokaryotic Cells –DNA and Ribosomes –No nucleus –No membrane bound Organelles Eukaryotic Cells –DNA and Ribosomes –Nucleus –Membrane bound Organelles
Emergent Properties Novel properties emerge that are not present at the level below Reductionism
Unity and Diversity
Biology Hierarchy
Subatomic Particles Atoms Molecules Organelles Cells Tissues Organs Organ Systems Organisms Populations Communities Ecosystems Biomes Biosphere
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: Bacteria Prokaryotic Cell Walls - Peptidoglycan Most Bacteria
Domain: Archaea Prokaryotic Extreme Conditions Make DNA and Proteins like eukaryotic cells
Domain: Eukarya Eukaryotic Cells
Kingdom: Protista Usually Unicellular Some have Cell Walls of Cellulose
Kingdom: Fungi Multicellular Cell Walls of Chitin Decomposers
Kingdom: Plantae Multicellular Cell Walls of Cellulose Autotrophs
Kingdom: Animalia Multicellular No Cell Walls Heterotrophs
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
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
Evolution Change over time
Why isn’t “Intelligent Design” taught in most science Classes?