Select an incorrect statement :

Options

A. Natality refers to the number of births during a given period
B. If a new habitat is just being colonised , emigration may contribute more significantly to population growth than birth rates
C. In 1981, the r value for human population in India was 0.0205
D. Any species growing exponentially under unlimited resource conditions can reach enormous population densities in a short time.

Answer

To solve the question of selecting the incorrect statement, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement Analysis:**
- **Statement 1:** "Natality refers to the number of births during a given period."
- **Analysis:** This statement is correct. Natality indeed refers to the number of births occurring in a specific time frame.

2. **Statement Analysis:**
- **Statement 2:** "If a new habitat is just being colonized, emigration may contribute more significantly to the population growth than birth rates."
- **Analysis:** This statement is incorrect. Emigration refers to individuals leaving a habitat. In a newly colonized habitat, there would be no existing population to emigrate from, and thus, emigration cannot contribute significantly to population growth compared to birth rates. Birth rates would be the primary factor in population growth in this scenario.

3. **Statement Analysis:**
- **Statement 3:** "In 1981, the R value for human population was 0.0205."
- **Analysis:** This statement is correct. The R value, which indicates the intrinsic rate of natural increase, was around 0.0205 for the human population in 1981.

4. **Statement Analysis:**
- **Statement 4:** "Any species growing exponentially under unlimited resource conditions can reach enormous population densities in a short time."
- **Analysis:** This statement is also correct. When resources are unlimited, species can reproduce rapidly, leading to high population densities in a short period.

5. **Conclusion:**
- After analyzing all statements, the incorrect statement is **Statement 2**: "If a new habitat is just being colonized, emigration may contribute more significantly to the population growth than birth rates."

### Final Answer:
The incorrect statement is **Statement 2**.

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