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20 Cards in this Set
- Front
- Back
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Observation: define |
Gathering info using your senses |
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Hypothesis: Define |
A proposed scientific explanation for a set of observations |
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Explain Spontaneous Generation |
Life can arise from nonliving matter |
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Biology |
The study of all living things |
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Metabolism |
Chemical reactions that break down materials into energy |
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Cell |
Smallest unit of an organism that can be considered alive |
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Theory |
An explanation that has been tested by repeated experiments |
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Characteristics of theories |
Theories are never proven! Theories must be testable and repeatable. Theories can be changed/replaced when new discoveries are made. |
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Characteristics of living things |
Made up of cells Reproduce Based on universal genetic code Grow and Develop Obtain/Use materials and energy Respond to Environment Keep a stable internal environment Change overtime |
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The goal of science |
Organize evidence to learn about the natural world
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Characteristic of Hypotheses |
1. Must be testable 2. |
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8 levels of organization |
1. Molecules 2. Cells 3. Groups of Cells 4. Organism 5. Population 6. Community 7. Ecosystem 8. Biosphere |
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Asexual vs. Sexual |
Asexual: single parent produces offspring identical to itself Sexual: cells from 2 different parents unite to form the 1st cell of the new organism |
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Quantitative vs. Qualitative |
Quan: numbers Qual: descriptions |
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Inference |
Logical interpretation of data based on prior knowledge/experience |
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Data |
Info about observations |
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Stimulus |
A signal to which an organism responds |
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Homeostasis |
Maintaining a stable internal environment |
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2 Labratory Techniques |
1. Cell cultures 2. Cell fractionation |
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Explain why its important to share results of an experiment. |
So that others can repeat the experiment and test for different outcomes |
