CrusaderLord
13.07.2020 •
Biology
In an experiment, a scientist decides to study the effect of exercise on cholesterol levels in people. He studies two set of people—those who exercise every day for an hour and those who don’t exercise at all.
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Ответ:
In this case, the statement that people who exercise for an hoour may have lower cholesterol level is HYPOTHESIS. The cholesterol level would be the DEPENDENT VARIABLE.
An hypothesis refer to a proposed statement based on prior knowledge, which is used as a starting point in scientific experimentation.
In scientific experiments, there are always two variables, independent and the dependent variable. The independent variable is the variable that is changed or controlled in a scientific experiment in order to determine its effects on the dependent variable.
Ответ:
1. Gravitational to Kinetic
2. Mechanical to Electrical
Explanation: