A species may be defined as a group of closely resembling organisms that if sexually reproducing, freely interbreed in nature.

Answer

### Step-by-Step Solution:

1. **Understanding the Definition of a Species**:
- A species is typically defined as a group of organisms that share similar characteristics and can interbreed in nature. This means that members of the same species can produce viable offspring together.

2. **Analyzing the Statement**:
- The statement provided is: "A species may be defined as a group of closely resembling organisms that if sexually reproducing, freely interbreed in nature."
- This aligns with the biological definition of a species, as it emphasizes both the resemblance among organisms and the ability to interbreed.

3. **Identifying Key Components**:
- Closely resembling organisms: This refers to the morphological and genetic similarities that define a species.
- Sexual reproduction: Indicates that the organisms can reproduce sexually, which is a common method of reproduction among many species.
- Free interbreeding in nature: This means that these organisms can mate and produce offspring without barriers, which is a crucial aspect of species definition.

4. **Conclusion**:
- Since the statement accurately reflects the biological definition of a species, we conclude that the statement is **true**.

### Final Answer:
The statement is **true**.

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