Which of the following character does not belong to Arthropoda :-

Options

A. Closed circulatory system
B. Movable jaws
C. Segmented body
D. Jointed legs

Answer

To determine which character does not belong to Arthropoda, we need to analyze each option provided.

### Step-by-Step Solution:

1. **Identify the Characteristics of Arthropoda**:
Arthropoda is a phylum characterized by certain features such as an exoskeleton made of chitin, segmented bodies, jointed appendages, and an open circulatory system.

2. **Evaluate Each Option**:
- **Option 1: Clue Circulatory System**:
- Arthropods have an open circulatory system, where blood (hemolymph) is pumped into a hemocoel (body cavity). This option is correct as it describes a feature of Arthropoda.
- **Option 2: Movable Jaws**:
- Arthropods possess movable jaws (mandibles), which are a characteristic feature. This option does belong to Arthropoda.
- **Option 3: Segmented Body**:
- Arthropods have a segmented body structure, which is a defining characteristic of the phylum. This option also belongs to Arthropoda.
- **Option 4: Jointed Legs**:
- The term "Arthropoda" itself means "jointed feet" or "jointed appendages." Therefore, this option is also a characteristic of Arthropoda.

3. **Determine the Correct Answer**:
- Since options 2, 3, and 4 are characteristics of Arthropoda, the only option that does not belong to Arthropoda is **Option 1: Clue Circulatory System**.

### Final Answer:
The characteristic that does not belong to Arthropoda is **Option 1: Clue Circulatory System**.