Question

Darwin's finches is the classic example of --------------------.

• A. Habitat isolation
• B. Seasonal isolation
• C. Geographical isolation
• D. Ethological isolation

Hint:

The finches live on separate islands divided by sea.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept
Isolation prevents interbreeding between populations and can lead to new species.

Step 2: The finches
Darwin's finches live on the Galapagos Islands, separated from the mainland and from each other by sea. Each population adapted to the food on its own island, giving different beak shapes.

Step 3: Type of isolation
Separation by physical barriers such as sea is geographical isolation, which leads to allopatric speciation and adaptive radiation.

Step 4: Conclusion
So Darwin's finches are the classic example of geographical isolation.

Final Answer:
Darwin's finches show geographical isolation. \[ \boxed{\text{(C) }\text{Geographical isolation}} \]