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The 7 characteristics of Life
1. Living things have a different molecular composition than non living things
2. Living things require energy and raw materials
3. Living things are composed of cells
4. Living things maintain homeostasis
5. Living things respond to their external environment
6. Living things grow and reproduce
7. Populations of living things evolve
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The hierarchy of classification (largest to smallest)
1. Domains
2. Kingdoms
3. Phylum
4. Class
5. Order
6. Family
7. Genus
8. Species
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The 3 Domains
1. Bacteria
2. Archaea
3. Eukaryota
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Bacteria
Single cells with no nucleus (prokaryo)
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Acharea
Single cells with no nucleus, live under extreme conditions (prokaryo)
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The kingdoms are under which domain?
Eukaryota
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The 4 Kingdoms
1. Protista
2. Animalia
3. Fungi
4. Plantes
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What is under the Protista kingdom?
Protozoans and algae, which are unicellular and eukaryotic
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What is under the Animalia kingdom?
Animals (ex.Humans), which are multicellular, eukaryotic, and heterotrophic
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What is under the Fungi kingdom?
Fungus, which are eukaryotic and decomposers
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What is under the Plantae kingdom?
plants, which are multicellular, eukaryotic, and photosynthesizers
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Criteria for Classifications
1. Presence or absence of a nucleus
2. Number of cells
3. Type of metabolism
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Multicellular
More than one cell
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Species
The smallest unit of classification
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Genus
Second smallest unit of classification
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Classification of humans
Domain:Eukaryou
Kingdom: Animalia
Phylum:Chordata
Class: mammalia
Order: Primates
Family: Hominidae
Genus: Homo
Species: Sapians
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4 Defining Features of Humans
1. Bipedaism- able to stand upright and walk on two legs
2. Opposable thumbs
3. Large Brain
4. Capacity for Language
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Levels of Biological Organization that human biology can be studies on
1. Atom
2. Cell
3. Tissue
4. organ
5. Organ System
6.Organism
7.Population
8. Community
9. Ecosystem
10. Biosphere
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Science
2 things: Knowledge about the natural world
The Process to acquire knowledge, scientific method
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Steps of the Scientific Method
1. Observe and Generalize
2. Formulate a hypothesis
3.Make a testable prediction
4. List materials and be specific
5. Experiment or observe
6. Analyze and record results
7. Modify the hypothesis if necessary and repeat
8.State your conclusion
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Inductive Reasoning
Make generalizations based on observation about the world
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Hypothesis
An educated guess
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Homeostasis
maintaining an internal environment compatible with life
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Biology
the study of life
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Cell
The smallest unit that exhibits all the characteristics of life
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