Question #6425732Single Choice

Biology

Question

Researchers want to test how temperature affects pigment production in frogs. Which experimental design is most appropriate?

Expose frogs of different species to the same temperature and observe their pigmentation.

Study the DNA sequences of frogs living in warm and cold regions.

Compare pigmentation in wild frogs living in different climates without controlling their environment.

Keep genetically identical frogs in environments with different temperatures and measure their pigmentation.

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