Based upon the modes of nutrition, protists are grouped into-

Options

A. Plant-like protists (algae) and ingestive, animal -like protists (protozoa), and absorptive, fungus like protists
B. Chrysophytes, Dinoflagellates and Euglenoids only
C. Slime moulds and fungi only
D. Flagellated protozoans and sporozoans only

Answer

To answer the question about how protists are grouped based on their modes of nutrition, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Protists**:
- Protists are a diverse group of eukaryotic organisms that are primarily unicellular. They are classified under the kingdom Protista.

2. **Modes of Nutrition in Protists**:
- Protists can be categorized based on how they obtain their nutrients. The three main modes of nutrition are:
- **Autotrophic**: These protists can produce their own food through photosynthesis. They are often referred to as "plant-like" protists.
- **Heterotrophic**: These protists consume other organisms for food. They are known as "animal-like" protists.
- **Saprophytic**: These protists absorb nutrients from decaying organic matter, similar to fungi.

3. **Grouping of Protists**:
- Based on the modes of nutrition, protists can be grouped into:
- **Plant-like Protists**: This group includes organisms such as algae (e.g., chrysophytes, dinoflagellates).
- **Animal-like Protists**: This group includes protozoans, which ingest food.
- **Fungus-like Protists**: This group includes slime molds that absorb nutrients.

4. **Evaluating the Options**:
- **Option 1**: Plant-like protists (algae), animal-like protists (protozoa), and fungus-like protists (slime molds). This option correctly categorizes protists based on their modes of nutrition.
- **Option 2**: Lists specific types of protists but does not cover all nutritional modes.
- **Option 3**: Incorrectly states that fungi are included in the Protista kingdom.
- **Option 4**: Focuses on specific types of protozoans and does not encompass all protist groups.

5. **Conclusion**:
- The correct grouping of protists based on their modes of nutrition is: **Plant-like protists (algae), Animal-like protists (protozoa), and Fungus-like protists (slime molds)**.

### Final Answer:
Based upon the modes of nutrition, protists are grouped into:
- Plant-like protists (e.g., algae)
- Animal-like protists (e.g., protozoa)
- Fungus-like protists (e.g., slime molds)

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