Read the following statemetns and select the incorrect ones.
(i) Homeostasis constant osmotic concentration of cells.
(ii) The famous keoladeo National Park (Bharapur) in Rajasthan hosts thousands of migratory birds coming from Siberia, in every winter.
(iii) `99%` of animals and nearly all plants are regulators.
(iv) The conformers are able to maintain their body temperature inspite of changes in ambient temperature.

Options

A. (i) and (ii)
B. (ii) and (iii)
C. (iii) and (iv)
D. (i) and (iv)

Explanation

To determine the incorrect statements from the given options, let's analyze each statement step-by-step:

1. **Statement (i)**: "Homeostasis constant osmotic concentration of cells."
- **Analysis**: Homeostasis refers to the ability of an organism to maintain a stable internal environment, including factors such as temperature and osmotic concentration. This statement correctly describes one aspect of homeostasis.
- **Conclusion**: This statement is **true**.

2. **Statement (ii)**: "The famous Keoladeo National Park (Bharatpur) in Rajasthan hosts thousands of migratory birds coming from Siberia, in every winter."
- **Analysis**: Keoladeo National Park is indeed known for hosting migratory birds, including Siberian cranes, during the winter months. This statement accurately reflects the migratory behavior of these birds.
- **Conclusion**: This statement is **true**.

3. **Statement (iii)**: "`99%` of animals and nearly all plants are regulators."
- **Analysis**: Regulators are organisms that maintain homeostasis, while conformers are those whose internal conditions change with the environment. The majority of animals and nearly all plants are conformers, not regulators. Thus, this statement is incorrect.
- **Conclusion**: This statement is **false**.

4. **Statement (iv)**: "The conformers are able to maintain their body temperature in spite of changes in ambient temperature."
- **Analysis**: Conformers cannot maintain a constant internal environment; instead, their internal conditions fluctuate with the ambient environment. This statement incorrectly attributes the ability to maintain body temperature to conformers.
- **Conclusion**: This statement is **false**.

### Summary of Findings:
- **True Statements**: (i) and (ii)
- **False Statements**: (iii) and (iv)

### Final Answer:
The incorrect statements are (iii) and (iv).

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