The term '' breed'' refers to

Options

A. a group of animals not related by descent but similar in most characters
B. a group of animals related by descent and similar in most characters
C. a group of animals related by descent but have alomost different characteristics
D. a group of animals neither related bu descent nor have similar characteristics.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Term "Breed":**
- The term "breed" in biology refers to a specific group of animals that share common characteristics and are related by descent.

2. **Analyzing the Options:**
- Option A: "A group of animals not related by descent but similar in most characters."
- This option is incorrect because it states that the animals are not related by descent, which contradicts the definition of a breed.

- Option B: "A group of animals related by descent and similar in most characters."
- This option aligns with the definition of a breed, as it emphasizes both descent and similarity in characteristics.

- Option C: "A group of animals related by descent but have almost different characteristics."
- This option is incorrect because it suggests that the animals have different characteristics, which does not fit the definition of a breed.

- Option D: "A group of animals neither related by descent nor have similar characteristics."
- This option is also incorrect as it contradicts the fundamental concept of what a breed is.

3. **Identifying the Correct Answer:**
- Based on the analysis, the correct answer is Option B: "A group of animals related by descent and similar in most characters."

4. **Conclusion:**
- Therefore, the term "breed" refers specifically to a group of animals that are related by descent and exhibit similarities in various characteristics.