In the nature-nurture issue, nature refers to an organism's environmental inheritance, nurture to its issues.
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Explanation:
info gathered b4 and after an experiment is used to confirm or disprove a hypothesis ( educated guess).
Reproduction: the act or process of producing offspring.
Heredity: the mechanism of transmission of specific characters or traits from parent to offspring.
Variation in fitness of organisms . Definitions of fitness:
Variation in individual characters among members of the population.
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Answer:
a burning candle
Iron rusting are both examples of exothermic reactions in our life
Explanation: