Which of the following is correct match of character with phylum ?

Options

A. Platyhelminthes - psuedocoelom
B. Aschelminthes - Bisexual
C. Annelida - Radula
D. Mollusca - Mantle

Answer

To determine the correct match of character with phylum from the given options, we can analyze each option systematically:

### Step 1: Analyze the first option - Platyhelminth as Pseudosilomate
- **Platyhelminth** (flatworms) are known to be **asilo**mates, meaning they do not have a body cavity.
- They are triploblastic, but their mesoderm does not form a true coelom or pseudocoelom.
- **Conclusion**: This option is incorrect.

### Step 2: Analyze the second option - Ascihelmines as Bisexual
- **Ascihelmines** (roundworms) exhibit **sexual dimorphism**, meaning there are distinct male and female forms.
- This means they are not strictly bisexual, as they have separate sexes.
- **Conclusion**: This option is also incorrect.

### Step 3: Analyze the third option - Annelida as having Radula
- **Annelida** (segmented worms) do not possess a **radula**.
- Radula is a characteristic feature of the phylum **Mollusca**, which is a rasping organ used for feeding.
- **Conclusion**: This option is incorrect.

### Step 4: Analyze the fourth option - Mollusca as having a Mantle
- **Mollusca** are characterized by the presence of a **mantle**, which is a soft tissue layer that covers the visceral mass and may secrete a calcareous shell.
- This is a defining feature of the phylum Mollusca.
- **Conclusion**: This option is correct.

### Final Answer
The correct match of character with phylum is:
**Mollusca - Mantle**

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