Two of the following organisms have a holozoic mode of nutrition. These organisms are:

Options

A. Paramecium and Plasmodium
B. Plasmodium and Parakeet
C. human and amoeba
D. Paramecium and Parasite

Answer

To determine which two organisms have a holozoic mode of nutrition, we need to understand what holozoic nutrition entails and analyze the given options.

### Step-by-Step Solution:

1. **Understand Holozoic Nutrition**:
- Holozoic nutrition is a type of heterotrophic nutrition where organisms ingest solid food, digest it internally, and then absorb the nutrients. This process involves ingestion, digestion, and egestion.

2. **Analyze the Options**:
- **Option A: Paramecium and Plasmodium**:
- Paramecium is a unicellular organism that uses holozoic nutrition by engulfing food particles.
- Plasmodium, on the other hand, is a parasite that does not ingest food in the same way, so this option is incorrect.

- **Option B: Plasmodium and Parakeet**:
- Again, Plasmodium does not exhibit holozoic nutrition. A parakeet, being a bird, does have holozoic nutrition, but since Plasmodium is included, this option is also incorrect.

- **Option C: Human and Amoeba**:
- Humans are multicellular organisms that ingest food and digest it through a complex digestive system, which qualifies as holozoic nutrition.
- Amoeba is a unicellular organism that also exhibits holozoic nutrition by engulfing food particles through phagocytosis.
- Therefore, this option is correct.

- **Option D: Paramecium and Parasite**:
- While Paramecium exhibits holozoic nutrition, the term "parasite" is too broad and does not specifically indicate a mode of nutrition. Not all parasites exhibit holozoic nutrition, making this option incorrect.

3. **Conclusion**:
- The two organisms that exhibit holozoic nutrition are **Human and Amoeba** (Option C).

### Final Answer:
The two organisms that have a holozoic mode of nutrition are **Human and Amoeba**.