Select the incorrect statement.

Options

A. Femur is the thigh bone.
B. Humerus is the bone present in lower arm.
C. Cartilage is present in upper part of ear.
D. Vertebral column is formed by 33 serially arranged vertebrae.

Explanation

### Step-by-Step Solution:

1. **Identify the Statements**: The question asks to select the incorrect statement from a list of statements about bones and body structure.

2. **Evaluate Each Statement**:
- **Statement 1**: "Femur is the thigh bone."
- This statement is correct. The femur is indeed the longest and strongest bone in the thigh.

- **Statement 2**: "Humerus is the bone present in the lower arm."
- This statement is incorrect. The humerus is actually the bone located in the upper arm, while the bones in the lower arm are the radius and ulna.

- **Statement 3**: "Cartilage is present in the upper part of the ear."
- This statement is correct. The upper part of the ear is made of cartilage, which is softer compared to the earlobe.

- **Statement 4**: "The vertebral column is formed by 33 serially arranged vertebrae."
- This statement is also correct. The vertebral column consists of 33 vertebrae that provide flexibility and support to the body.

3. **Conclusion**: After evaluating all the statements, the second statement about the humerus being in the lower arm is incorrect.

### Final Answer:
The incorrect statement is: "Humerus is the bone present in the lower arm."

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