Which of the following is the odd one out wrt the kingdom to which they belong

Options

A. Porifera
B. Cnidaria
C. Protista
D. Ctenophora

Answer

To solve the question of which organism is the odd one out with respect to the kingdom to which they belong, we can follow these steps:

### Step 1: Identify the Organisms and Their Kingdoms
- The question mentions several organisms: Porphyra, Nideria (Cnidaria), and Tyrophora (Ctenophora).
- We need to determine the kingdom for each of these organisms.

### Step 2: Classify Each Organism
- **Porphyra**: This is a type of red algae that belongs to the kingdom **Plantae**.
- **Nideria (Cnidaria)**: This phylum includes organisms like jellyfish and corals, which belong to the kingdom **Animalia**.
- **Tyrophora (Ctenophora)**: This phylum includes comb jellies and also belongs to the kingdom **Animalia**.

### Step 3: Identify the Odd One Out
- Now, we can summarize the kingdoms:
- Porphyra: Kingdom **Plantae**
- Nideria (Cnidaria): Kingdom **Animalia**
- Tyrophora (Ctenophora): Kingdom **Animalia**
- Since Porphyra is the only organism that belongs to the kingdom Plantae, while the other two belong to Animalia, it is the odd one out.

### Step 4: Conclusion
- The odd one out with respect to the kingdom to which they belong is **Porphyra**.

### Final Answer
- **Porphyra** is the odd one out.

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