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Description: Define biology and its themes.
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Chapter 1:
Introduction to Biology
Traits of Living Things
● Growth & development
● Evolution & adaptation
● Cellular organization
● Response to environment
● Homeostasis
● Metabolism
● Reproduction
Themes in Biology
● Hierarchy (studied at levels)
● Interaction (between matter and energy)
● Structure correlated to function (strunction)
● Cells (basic unit of life)
● DNA (heredity)
● Feedback (regulate systems)
● Evolution (changes over time)
Hierarchy
● Atom
● Molecule
● Organelle
● Cell
● Tissue
● Organ
● Organ system
● Organism
● Population
● Community
● Ecosystem
● Biosphere
Emergent properties ew properties emerge as the hierarchy list goes down
n
All cells contain
●
●
●
●
Membrane
Ribosomes
DNA
Cytosol (fluid)
Feedback
Negative
stimulus causes opposite response
>< or <>
Positive
exaggerates original stimulus
>> or <<
Taxonomy
based on binomial nomenclature
Taxonomy
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
Domains
Bacteria
Archaea
Eukarya
Kingdoms
Bacteria
Archaea
Protista
Fungi
Plantae
Animalia
Discovery science
observe and take notes
Hypothesisbased approach
● Observation
● Question
● Hypothesis
● Prediction
● Test
● Conclusion
Controlled experiment
control all variables except one & have a control group
Description: Define biology and its themes.