The per individual change in a population due to natality can be estimated by using (Here, `DeltaN_(n))` =New individuals , N=initial populations , `Deltat`=change in time)

Options

A. `(Ndeltat)/(DeltaN_(n))`
B. `(NDeltaN_(n))/(t)`
C. `(DeltaN_(n)Deltat)/(N)`
D. `(DeltaN_(n))/(N Deltat)`

Answer

To estimate the per individual change in a population due to natality, we can use the following steps:

### Step-by-Step Solution:

1. **Understand the Variables**:
- `Delta N (ΔN)` represents the number of new individuals added to the population.
- `N` is the initial population size.
- `Delta t (Δt)` represents the change in time over which the population change is observed.

2. **Identify the Formula**:
- The per individual change in the population due to natality can be expressed as the ratio of the change in population to the initial population over a given time period. The formula can be written as:
\[ \text{Per individual change} = \frac{\Delta N}{N \cdot \Delta t} \]

3. **Substitute the Values**:
- If you have specific values for `ΔN`, `N`, and `Δt`, substitute them into the formula to calculate the per individual change in the population.

4. **Calculate the Result**:
- Perform the calculation to find the per individual change in the population.

### Example Calculation:
- If `ΔN = 10` (new individuals), `N = 100` (initial population), and `Δt = 1` (time period in years), then:
\[ \text{Per individual change} = \frac{10}{100 \cdot 1} = 0.1 \]
This means there is a 0.1 change per individual in the population due to natality.

### Conclusion:
- The per individual change in a population due to natality can be effectively estimated using the formula provided, allowing for a clear understanding of population dynamics over time.

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