Choose the incorrect characteristic(s) regarding internal fertilisation in organism.
I.Internal fertilization is seen in most terrestrial organisms.
II. female gamete is formed inside the female body where it fuses with motile male gamete.
III. Higher animals and majority of plants do not show internal fertilisation.

Options

A. Only I
B. II and III
C. Only II
D. I and II

Answer

To determine the incorrect characteristics regarding internal fertilization in organisms, we will analyze each statement provided in the question step by step.

### Step-by-Step Solution:

1. **Understanding Internal Fertilization**:
- Internal fertilization occurs when the male gamete (sperm) fuses with the female gamete (egg) inside the body of the female organism. This is common in many terrestrial organisms, particularly in higher animals.

2. **Analyzing Statement I**:
- **Statement I**: "Internal fertilization is seen in most terrestrial organisms."
- This statement is **correct**. Internal fertilization is indeed prevalent among most terrestrial organisms, including mammals, birds, and reptiles.

3. **Analyzing Statement II**:
- **Statement II**: "Female gamete is formed inside the female body where it fuses with motile male gamete."
- This statement is **partially correct** but misleading. While the female gamete is formed inside the female body, the term "motile male gamete" can be misleading in the context of internal fertilization. In many cases, the sperm does not need to be motile in the same way as in external fertilization. Therefore, this statement can be considered **incorrect**.

4. **Analyzing Statement III**:
- **Statement III**: "Higher animals and majority of plants do not show internal fertilisation."
- This statement is **incorrect**. Higher animals, such as mammals and birds, do exhibit internal fertilization. Additionally, while most plants reproduce through external means (like pollination), there are some plants that do exhibit internal fertilization. Thus, this statement is also **incorrect**.

5. **Conclusion**:
- The incorrect characteristics regarding internal fertilization are found in **Statement II and Statement III**. Therefore, the answer to the question is that Statements II and III are incorrect.

### Final Answer:
- The incorrect characteristics regarding internal fertilization are:
- Statement II: "Female gamete is formed inside the female body where it fuses with motile male gamete." (Incorrect)
- Statement III: "Higher animals and majority of plants do not show internal fertilisation." (Incorrect)