Scientific study of diversity of organisms and their evolutionary relationships is called

Options

A. morphology
B. anatomy
C. taxonomy
D. systematics

Answer

To solve the question "Scientific study of diversity of organisms and their evolutionary relationships is called," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question is asking for the term that describes the scientific study of the diversity of organisms and their evolutionary relationships.

2. **Analyze the Options**: The options given are:
- A) Morphology
- B) Anatomy
- C) Taxonomy
- D) Systematics

3. **Define Each Term**:
- **Morphology**: This is the study of the form and structure of organisms, focusing on external features.
- **Anatomy**: This refers to the study of the internal structures of organisms.
- **Taxonomy**: This is the science of naming, identifying, and classifying organisms.
- **Systematics**: This is the scientific study that focuses on the diversity of organisms and their evolutionary relationships.

4. **Identify the Correct Term**: From the definitions, we see that "systematics" is specifically concerned with both the diversity of organisms and their evolutionary relationships.

5. **Select the Correct Option**: Therefore, the correct answer is:
- **Option D: Systematics**

### Final Answer:
The scientific study of diversity of organisms and their evolutionary relationships is called **Systematics**.

---