Sexually interbreeding or potentially interbreeding group of individuals which is reproductively isolated from the other species is

Options

A. Biological species
B. Morphospecies
C. Evolutionary species
D. Sibling species

Answer

To solve the question, we need to identify the term that describes a group of individuals that can interbreed or have the potential to interbreed, while being reproductively isolated from other groups. Here’s the step-by-step solution:

### Step 1: Understand the Key Terms
- **Sexually interbreeding**: This refers to the ability of individuals within a group to mate and produce viable offspring.
- **Potentially interbreeding**: This suggests that even if they do not currently interbreed, they have the capability to do so under the right circumstances.
- **Reproductively isolated**: This means that this group cannot breed with individuals from other groups or species.

### Step 2: Identify the Concept
The question is asking for a specific term that encapsulates all these characteristics. We are looking for a definition that includes both the ability to interbreed and the concept of reproductive isolation from other species.

### Step 3: Recall Relevant Biological Concepts
In biology, the term that describes a group of organisms that can interbreed and are reproductively isolated from other groups is known as a "species." More specifically, the definition that fits this description is the "biological species concept."

### Step 4: Conclude the Answer
Based on the understanding of the terms and concepts, the answer to the question is:
**Biological species.**