The growth of a population without limit at its maximal rate and also that, rates of immigration and emigration are equal, then it is called

Options

A. Carrying capacity
B. Biotic potential
C. Positive growth
D. Negative growth

Answer

To solve the question regarding the growth of a population without limit at its maximal rate, we need to analyze the options provided and understand the definitions of key terms related to population growth.

### Step-by-Step Solution:

1. **Understand the Question**: The question states that we are looking for a term that describes a population growing without limit at its maximal rate, with equal rates of immigration and emigration.

2. **Analyze the Options**:
- **Carrying Capacity**: This refers to the maximum number of individuals that an environment can sustain indefinitely. Since the question specifies growth without limit, this option does not fit.
- **Biotic Potential**: This is the maximum reproductive capacity of an organism under ideal environmental conditions. It reflects the potential for growth without restrictions, making it a strong candidate for our answer.
- **Positive Growth**: This term indicates that the birth rate exceeds the death rate, leading to an increase in population size. However, it does not specifically imply growth at maximal rates under ideal conditions.
- **Negative Growth**: This occurs when the death rate exceeds the birth rate, leading to a decrease in population size. This is not relevant to the question.

3. **Identify the Correct Answer**: Given the definitions and the context of the question, the correct term that describes the growth of a population without limit at its maximal rate, while immigration and emigration rates are equal, is **Biotic Potential**.

### Final Answer:
The correct answer is **Biotic Potential**.

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