An unrestricted reproductive capacity is called

Options

A. Birth rate
B. Biotic potential
C. Carrying capacity
D. Fertility

Answer

To answer the question "An unrestricted reproductive capacity is called," we need to analyze the options provided and understand the definitions of each term.

### Step-by-Step Solution:

1. **Understanding Birth Rate**:
- The birth rate refers to the number of live births per thousand individuals in a population over a specific period. It measures how frequently births occur but does not indicate unlimited reproductive capacity.
- **Conclusion**: Birth rate is not the answer.

2. **Understanding Biotic Potential**:
- Biotic potential is defined as the maximum reproductive capacity of an organism under ideal environmental conditions. It represents the highest rate at which a population can grow when resources are unlimited and there are no constraints on reproduction.
- **Conclusion**: Biotic potential is indeed an unrestricted reproductive capacity.

3. **Understanding Carrying Capacity**:
- Carrying capacity refers to the maximum number of individuals of a particular species that an environment can support sustainably. It indicates a limit on population growth due to resource availability.
- **Conclusion**: Carrying capacity is not the answer as it implies limited reproductive capacity.

4. **Understanding Fertility**:
- Fertility is the ability of an individual or couple to conceive and bear children. It is a measure of reproductive capability but does not imply an unrestricted capacity for reproduction.
- **Conclusion**: Fertility is not the answer.

5. **Final Answer**:
- After analyzing all the options, the term that best describes "an unrestricted reproductive capacity" is **biotic potential**.