Which of the following is incorrect match regarding the phylum and its two examples?

Options

A. Ctenophora - Pleurobrachia, ctenoplana
B. Cnidaria -adamsia, obelia
C. Porifera -Euspongia, hormiphora
D. Platyhelminthes -Taenia, fasciola

Explanation

To determine which of the following matches between phylum and examples is incorrect, we will analyze each option step by step.

### Step 1: Analyze the first option - Tenofera
- **Phylum**: Tenofera
- **Examples**: Pleurobrachia and Tenoplana
- **Analysis**:
- Pleurobrachia is known as the sea gooseberry, which is indeed a member of the phylum Tenofera.
- Tenoplana is also a correct example as it is a commensal organism found in marine environments.
- **Conclusion**: This match is correct.

### Step 2: Analyze the second option - Cnidaria
- **Phylum**: Cnidaria
- **Examples**: Adamtia and Obelia
- **Analysis**:
- Adamtia is a sea anemone, which is a correct representative of Cnidaria.
- Obelia is a colonial hydrozoan, also belonging to Cnidaria.
- **Conclusion**: This match is correct.

### Step 3: Analyze the third option - Porifera
- **Phylum**: Porifera
- **Examples**: Euspongia and Hormifora
- **Analysis**:
- Euspongia is indeed a sponge, which belongs to the phylum Porifera.
- Hormifora, however, is known as sea walnuts and belongs to the phylum Tenofera, not Porifera.
- **Conclusion**: This match is incorrect.

### Step 4: Analyze the fourth option - Platyhelminthus
- **Phylum**: Platyhelminthus
- **Examples**: Taenia and Fascicula
- **Analysis**:
- Taenia is a genus of parasitic flatworms, and Fascicula is also a type of flatworm.
- **Conclusion**: This match is correct.

### Final Conclusion
After analyzing all options, the incorrect match is found in the third option: Porifera with examples Euspongia and Hormifora. Therefore, the answer to the question is:

**Answer**: The incorrect match is option 3 (Porifera: Euspongia and Hormifora).

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