Answer:
Aristotle is known to be the father of political science. Aristotle is known to be among the very few people who formed the definition of political science in history. Aristotle also wrote his findings on the subject in books under the name of Politics.
Niccolò di Bernardo dei Machiavelli, an Italian diplomat, is often referred to as the father of modern political science due to his marvellous work in this field.
only one variable will be tested at a time
They break down dead plants and animals. They also break down the waste of other organisms. If decomposes weren't part of the ecosystem then plants wouldn't get essential nutrients, and dead matter and waste would pile up.