Number of immigration is more than emigration and death is lower than natality. Growth curve of population will show

Options

A. Exponential phase
B. Lag phase
C. Declining phase
D. Steady phase

Answer

To solve the question, we need to analyze the given conditions regarding immigration, emigration, natality, and mortality, and how they affect the growth curve of a population.

### Step-by-Step Solution:

1. **Understanding Immigration and Emigration**:
- Immigration refers to the number of individuals entering a population.
- Emigration refers to the number of individuals leaving a population.
- The question states that immigration is greater than emigration. This means that more individuals are entering the population than leaving it.

**Hint**: Remember that immigration increases population size while emigration decreases it.

2. **Understanding Natality and Mortality**:
- Natality refers to the birth rate, or the number of individuals born in a population over a certain period.
- Mortality refers to the death rate, or the number of individuals dying in a population over a certain period.
- The question states that mortality is lower than natality. This indicates that more individuals are being born than are dying.

**Hint**: Natality contributes to population growth, while mortality reduces it.

3. **Analyzing the Effects on Population Growth**:
- Since immigration is greater than emigration, the population is increasing due to the net influx of individuals.
- Since natality is greater than mortality, the population is also increasing because more individuals are being born than are dying.

**Hint**: Both immigration and high natality lead to an increase in population size.

4. **Conclusion on Population Growth**:
- With both immigration exceeding emigration and natality exceeding mortality, the overall effect is a net increase in the population.
- This situation typically leads to an exponential growth phase in the population growth curve.

**Hint**: An exponential growth curve is characterized by rapid increases in population size over time.

5. **Identifying the Growth Curve**:
- The growth curve will not show a lag phase (where growth is slow) or a steady state (where growth stabilizes) or a declining phase (where the population decreases).
- Instead, it will show an exponential growth phase, where the population size increases rapidly.

**Hint**: The exponential growth curve is often represented as a J-shaped curve on a graph.

### Final Answer:
The growth curve of the population will show an **exponential growth phase**.