In Whittaker's classification, unicellular organisms are grouped under

Options

A. Protista
B. Porifera
C. Fungi
D. Protozoa

Answer

**Step-by-Step Solution:**

1. **Understanding Whittaker's Classification:**
- Whittaker's classification is a system that categorizes living organisms into five kingdoms: Monera, Protista, Fungi, Plantae, and Animalia.

2. **Identifying Unicellular Organisms:**
- Unicellular organisms are those that consist of a single cell. They can be prokaryotic (like bacteria) or eukaryotic (like protozoa and some algae).

3. **Grouping Unicellular Organisms:**
- In Whittaker's classification, unicellular organisms are primarily grouped under the kingdom **Protista**. This kingdom includes a variety of eukaryotic organisms that are mostly unicellular.

4. **Analyzing the Options:**
- The options provided are:
- A) Protista
- B) Porifera
- C) Panjai
- D) Protozoa
- **Porifera** are multicellular organisms (sponges) and belong to the kingdom Animalia.
- **Panjai** is not a standard classification term in Whittaker's system and does not specifically refer to unicellular organisms.
- **Protozoa** refers to a group of unicellular eukaryotic organisms but is not a kingdom by itself; it falls under Protista.

5. **Conclusion:**
- Since the question specifically asks about the grouping of unicellular organisms in Whittaker's classification, the correct answer is **A) Protista**.

**Final Answer:**
The correct answer is **A) Protista**.

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