Related Experiment Video
Updated: Aug 18, 2026

29:13
Microbial Communities in Nature and Laboratory - Interview
Published on: May 28, 2007
Better to give than receive: my exciting journey in science
1Department of Urology, 1365 Clifton Rd., N.E., Suite B-5100, Atlanta, GA 30322, USA. lwchung@emory.edu
Cancer Biology & Therapy
|April 23, 2005
Abstract
No abstract available in PubMed .
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An experiment is a planned activity carried out under controlled conditions. The purpose of an experiment is to investigate the relationship between two variables. When one variable causes change in another, we call the first variable the explanatory or independent variable. The affected variable is called the response or dependent variable. In a randomized experiment, the researcher manipulates values of the explanatory variable and measures the resulting changes in the response variable. The...
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The scientific method is a detailed, empirical problem-solving process used by biologists and other scientists. This iterative approach involves formulating a question based on observation, developing a testable potential explanation for the observation (called a hypothesis), making and testing predictions based on the hypothesis, and using the findings to create new hypotheses and predictions.Generally, predictions are tested using carefully-designed experiments. Based on the outcome of these...
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Altruism
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