Download Biology 1

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
Biology Hierarchy
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Subatomic Particles
Atoms
Molecules
Organelles
Cells
Tissues
Organs
Organ Systems
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Organisms
Populations
Communities
Ecosystems
Biomes
Biosphere
Biology Hierarchy
• K
• P
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C
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O
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F
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G
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S
Biology Hierarchy
• Kingdom
• Phylum
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Class
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Order
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Family
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Genus
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Species
Biology Hierarchy
• Kingdom - Animalia
• Phylum
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Class
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Order
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Family
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Genus
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Species
Biology Hierarchy
• Kingdom - Animalia
• Phylum - Chordata
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Class
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Order
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Family
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Genus
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Species
Biology Hierarchy
• Kingdom - Animalia
• Phylum - Chordata
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Class - Aves
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Order
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Family
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Genus
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Species
Biology Hierarchy
• Kingdom - Animalia
• Phylum - Chordata
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Class - Aves
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Order - Falconiformes
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Family
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Genus
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Species
Biology Hierarchy
• Kingdom - Animalia
• Phylum - Chordata
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Class - Aves
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Order - Falconiformes
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Family - Accipitridae
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Genus
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Species
Biology Hierarchy
• Kingdom - Animalia
• Phylum - Chordata
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Class - Aves
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Order - Falconiformes
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Family - Accipitridae
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Genus - Haliaeetus
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Species
Biology Hierarchy
• Kingdom - Animalia
• Phylum - Chordata
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Class - Aves
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Order - Falconiformes
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Family - Accipitridae
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Genus - Haliaeetus
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Species - leucocephalus
Biology Hierarchy
• Kingdom - Animalia
• Phylum - Chordata
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Class - Aves
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Order - Falconiformes
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Family - Accipitridae
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Genus - Haliaeetus
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Species - leucocephalus
Biology Hierarchy
• Domain
• Kingdom
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Phylum
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Class
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Order
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Family
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Genus
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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?