Which of the following statements is incorrect regarding the process of external and internal fertilization?

Options

A. Male and female gametes fuse inside the female body during internal fertilization
B. Male and female gametes fuse outside the female body during external fertilization
C. In internal fertilization the number of eggs produced by female is more
D. In external fertilzation, the number of eggs produced by female is more

Answer

To determine which statement is incorrect regarding the processes of external and internal fertilization, we can analyze each statement step by step.

### Step-by-Step Solution:

1. **Understanding Internal Fertilization**:
- Internal fertilization occurs when the male and female gametes (sperm and egg) fuse inside the female body.
- This process typically results in fewer eggs being produced compared to external fertilization because the female has more control over reproduction and the conditions for fertilization are more specific.

2. **Analyzing the First Statement**:
- The first statement claims that "male and female gametes fuse inside the female body during internal fertilization."
- This statement is **correct** as it accurately describes internal fertilization.

3. **Analyzing the Second Statement**:
- The second statement states that "male and female gametes fuse outside the female body during external fertilization."
- This statement is also **correct** since external fertilization involves the fusion of gametes outside the female body, commonly seen in aquatic animals.

4. **Analyzing the Third Statement**:
- The third statement claims that "in internal fertilization, the number of eggs produced by the female is more."
- This statement is **incorrect**. In internal fertilization, the number of eggs produced is generally less than in external fertilization. This is because internal fertilization allows for more controlled conditions and typically results in fewer offspring.

5. **Analyzing the Fourth Statement**:
- The fourth statement indicates that "in external fertilization, the number of eggs produced by the female is more."
- This statement is **correct**. In external fertilization, females often produce a large number of eggs to increase the chances of successful fertilization.

### Conclusion:
The incorrect statement regarding the processes of external and internal fertilization is the third statement: "in internal fertilization, the number of eggs produced by the female is more."