How many teeth does a Blue whale has?

Options

A. Twenty
B. Thirty
C. Forty
D. None.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks how many teeth a blue whale has, with options provided: 20, 30, 40, or none.

2. **Identifying the Type of Whale**: Recognize that the blue whale is a type of baleen whale. Baleen whales are different from toothed whales in terms of their feeding mechanisms.

3. **Teeth vs. Baleen**: Unlike toothed whales, blue whales do not have teeth. Instead, they possess baleen plates. These plates are made of keratin (the same material as human nails) and are used for filtering food from the water.

4. **Baleen Functionality**: The baleen plates, which can number between 272 to 395 on each side of the jaw, act like a sieve to trap small organisms such as krill, plankton, and small fish, which are the primary diet of blue whales.

5. **Conclusion**: Since blue whales do not have teeth, the correct answer to the question is "none."

6. **Final Answer**: The blue whale has **none** (option D).

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