Which one is correct pairing

Options

A. Hydra-Anthozoa
B. Paramecium-Arachnida
C. Plasmodium-Sporozoa
D. Amoeba-Ciliata.

Answer

To solve the question regarding which pairing is correct, we will analyze each option provided:

1. **Hydra, Anthozoa**:
- Hydra is a genus of small freshwater animals belonging to the class Hydrozoa.
- Anthozoa is a class of marine animals that includes corals and sea anemones.
- Therefore, this pairing is incorrect.

2. **Paramecium, Arcanida**:
- Paramecium is a unicellular, free-living protozoan.
- Arcanida (likely a misspelling of Arachnida) refers to a class of arthropods, which includes spiders and scorpions.
- Hence, this pairing is also incorrect.

3. **Plasmodium, Sporozoa**:
- Plasmodium is a genus of protozoan parasites that are responsible for malaria.
- Sporozoa is a class of protozoans that includes Plasmodium, as they reproduce via spores.
- This pairing is correct.

4. **Amoeba, Ciliata**:
- Amoeba is a unicellular organism that is non-ciliated.
- Ciliata refers to a group of protozoans that are characterized by the presence of cilia.
- Therefore, this pairing is incorrect.

After analyzing all the options, the correct pairing is **Plasmodium, Sporozoa**.

### Step-by-Step Solution:
1. Identify the first pairing: Hydra and Anthozoa.
- Determine the classification of Hydra.
- Conclude that this pairing is incorrect.

2. Identify the second pairing: Paramecium and Arcanida.
- Determine the classification of Paramecium.
- Conclude that this pairing is incorrect.

3. Identify the third pairing: Plasmodium and Sporozoa.
- Determine the classification of Plasmodium.
- Conclude that this pairing is correct.

4. Identify the fourth pairing: Amoeba and Ciliata.
- Determine the classification of Amoeba.
- Conclude that this pairing is incorrect.

5. Summarize the findings and state the correct pairing.