Darwin's finches show one of the following aspects of evolution.

Options

A. Biogeographic evidence
B. Industrial melanism
C. Biochemical evidence
D. Embryological evidence

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the aspect of evolution demonstrated by Darwin's finches. We need to identify which of the four options (biogeographical evidence, industrial melanism, biochemical evidence, embryological evidence) is relevant to the finches.

2. **Background on Darwin's Finches**: Darwin's finches were observed by Charles Darwin during his visit to the Galapagos Islands. He noted that these finches had different physical characteristics and behaviors based on the specific island they inhabited.

3. **Species Variation**: There are a total of 15 different species of Darwin's finches. These species exhibit variations in beak size, shape, and feeding behavior, which are adaptations to their specific environments.

4. **Geographical Distribution**: The finches' variations can be attributed to their geographical distribution across the islands. This distribution led to different evolutionary paths for the finches, depending on the resources available on each island.

5. **Identifying the Correct Option**: Since the question is about the aspect of evolution that Darwin's finches illustrate, we can conclude that their variations are best explained by biogeographical evidence. This is because their evolutionary changes are closely linked to their geographical locations and the environmental pressures they faced.

6. **Final Answer**: The aspect of evolution that Darwin's finches show is **Option A: Biogeographical Evidence**.

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