Nature has provided the potential to carry out various kinds of "natural experiments" in the form of

Question

Quizplus · Accepted Answer

Twins provide a unique opportunity to study the effects of both nature and nurture on various traits or outcomes. Monozygotic (identical) twins share 100% of their genetic material, while dizygotic (fraternal) twins share approximately 50% of their genetic material. Therefore, any differences between monozygotic twins can be attributed to environmental factors. This makes twins an ideal subject for natural experiments. A and C are incorrect because genotypes and phenotypes are not natural experiments themselves, but rather the focus of study in a natural experiment. D is incorrect because genetics alone cannot provide a natural experiment, but rather it can inform the design and interpretation of one.

Nature Has Provided the Potential to Carry Out Various Kinds