BIO 101 Midterm Lab Practical (Labs 1-9) Test Questions and Answers

BIO 101: Midterm Lab Practical (Labs 1-9) Observation Information obtained through the senses. Inference A conclusion reached on the basis of evidence and reasoning Hypothesis a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation. Experiment A research method in which an investigator manipulates one or more factors to observe the effect Qualitative data descriptive data using words Quantitative data numerical data Results data and observations gathered from the experiment Conclusion A summary based on evidence or facts Experimental/independent variable part of the experiment that the scientist changes or manipulates Responding/dependent variable the part of the experiment that is measured as data Constants (aka controlled variables) factors that do not change in the experiment Control group In an experiment, the group that is not exposed to the treatment; contrasts with the experimental group and serves as a comparison for evaluating the effect of the treatment. Negative control Control group where conditions produce a negative outcome