Lab 1 & Chapter 1
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32 terms
Terms | Definitions |
|---|---|
 Scientific Method | a logical procedure for gathering information about the natural world, in which experimentation and observation are used to test hypotheses. |
| Hypothesis | a proposal intended to explain certain facts or observations |
| Scientific Theory | An explanation supported by many tests and accepted by a general consensus of scientists. |
| Test Group | Group exposed to the manipulated variable in an experiment. |
| Control Group | The group that does not receive the experimental treatment. |
| Placebo | A substance that has no pharmacological effect but administered as a control in testing, experimentally or clinically. |
| Data | Evidence; information gathered from observations |
| Sample Size | Number of data points evaluated in the experiment. |
| Scientific Method Steps | Identify the Problem- Form a Hypothesis- Create an Experiment- Preform an Experiment- Analyze Data- Communicate results. |
| Inductive Reasoning | Reasoning from detailed facts to general principles. |
| Deductive Reasoning | Reasoning from the general to the specific. |
| Variable | a quantity that can assume any of a set of values |
| Statistical Significance | A statistical statement of how likely it is that an obtained result occurred by chance. |
| Characteristics of Life | 1) respond to external stimuli 2)-4) alter, sense, and adapt to the environment 5) use energy 6) reproduce 7) contain materials only found in living organisms 8) homeostasis 9) high degree of organization |
| High Degree of Organization | 1) cells 2)tissues 3) organs 4) organ systems 5) organisms |
| Homeostasis | Stable conditions within the body; regardless of changes in the outside environment. |
| Taxonomy | a classification of organisms into groups based on similarities of structure or origin etc |
| Feedback System | A cycle of events in which the status of a body condition is monitored, evaluated, changed, remonitored, reevaluated, and so on. |
| Negative Feedback System | Reverse a change in a controlled condition. |
| Positive Feedback System | a process that results in a response that enhances the original stimulus |
| Natural Organization in Life | Chemical Level > Cellular Level > Tissue Level > Organ Level > Organ System Level > Organism Level |
| 4 Major Tissue Types | 1 Muscular 2 Nervous 3 Connective 4 Epithelial |
| Organs | group of tissues that work together to perform closely realated functions |
| Organ Systems | a group of organs that work together in performing vital body functions |
| Organism | a living thing that has (or can develop) the ability to act or function independently |
| Cells | The basic unit of all living things |
| Tissues | groups of similar cells that perform a specific function in an organism |
| Global Natural Organization of Life | Individual or Species > Human Population > Biological Community > Ecosystem |
| 3 Domains | Bacteria, archaea, eukarya |
| 6 Kingdoms | Archaebacteria, Eubacteria, Protista, Fungi, Plantae, Animalia |
| Human Taxonomy | 1. Kingdom - Animalia 2. Phylum - Vertebrata 3. Class - Mammalia 4. Order - Primates 5. Family - Hominidae 6. Genus - Homo 7. species - sapiens |
| Examples of Homeostasis | temperature change, regulation of blood carbon and dioxide level, regulation of blood glucose level |
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