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Simonds_Unit I_11_12

Unit I- Nature of Science

Biology the study of life
4 Characteristics of Life Organization, Reproduction, Change, Adjust to change
Levels of Organization Cells, Tissue, Organ, Organ Systems, Organism
Energy the ability to cause change
Evolution change over time
Homeostatsis the property of a system that regulates its internal environment and tends to maintain a stable, constant condition
Stimulus any change either internal or external which leads to a response
Response what happens when the organism reacts to the stimulus.
Abiotic a nonliving factor. For example: temperature, dirt, wind, rain.
Biotic a living factor. For example: plant, animal, bacteria.
Growth change in size (plant getting taller)
Development change in shape (humans going through puberty)
control (group) group in which all conditions are kept the same
constants any factors in the experiment that remain the same regardless if they are in the control or the experimental group.
experimental group all conditions are kept the same except for the independent variable being tested
dependent variable variable that the experimenter is changing
independent variable the result the experimenter is measuring or looking for
axis the independent variable is graphed on X-axis
axis the dependent variable is graphed on Y-axis
the horizontal axis (side to side) X-axis
the vertical axis (up and down) Y-axis
qualitative data data collected that is a description
quantitative data data is analyzed by comparing numeric (#)values
metabolism set of chemical reactions that happen in living organisms to maintain life
Order of the major steps of the scientific method Observation, Question, Hypothesis, Experiment, Analysis, Conclusion
Created by: ssimond1