Select the correct statement:

Options

A. Darwinian variations are small and directionless
B. Mutations are random and directional
C. Fitness is the end result of the ability to adapt and get selected by nature
D. All mammals except whales and camels have seven cervical vertebrae

Answer

To solve the question, we need to analyze each statement provided in the options and determine which one is correct.

### Step-by-Step Solution:

1. **Evaluate the First Statement:**
- The statement claims that "Darwinian variations are small and directionless."
- According to Darwin's theory, variations are indeed small, but they are not directionless; they accumulate over time and can lead to the evolution of new species. Therefore, this statement is **incorrect**.

2. **Evaluate the Second Statement:**
- The statement claims that "mutations are random and directional."
- Mutations are random changes in the DNA sequence and do not follow a specific direction. They are considered directionless. Hence, this statement is also **incorrect**.

3. **Evaluate the Third Statement:**
- The statement claims that "fitness is the end result of the ability to adapt and get selected by nature."
- This aligns with Darwin's concept of natural selection, where fitness refers to an organism's ability to survive, reproduce, and compete in its environment. This statement is **correct**.

4. **Evaluate the Fourth Statement:**
- The statement claims that "all mammals except whales and camels have seven cervical vertebrae."
- In reality, nearly all mammals, including whales and camels, have seven cervical vertebrae. Therefore, this statement is **incorrect**.

5. **Conclusion:**
- The only correct statement among the options provided is the third one: "fitness is the end result of the ability to adapt and get selected by nature."

### Final Answer:
The correct statement is: **"fitness is the end result of the ability to adapt and get selected by nature."**

---