Independent Variable: Scenarios (such as different times of the day or places) used to check if a person will become depressed or not.
Dependent Variable: Number of people diagnosed with depression.
Constant: Amount of people who do not understand depression.
Control: How your setting can impact mood and performance.
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Answer:
Fat
Explanation:
Fat contains the most energy storing chemical bonds.
Species relationships. People find similarities between fossils and modern organisms to connect to evolution and other factors.