Whittaker's protista excludes

Options

A. Some unicellular algae and fungi
B. No unicellular organisms
C. Only unicellular prokaryotes
D. All the above

Answer

**Step-by-Step Solution:**

1. **Understanding Whittaker's Classification**:
- In 1969, R.H. Whittaker proposed a five-kingdom classification system for living organisms. The five kingdoms are Monera, Protista, Fungi, Plantae, and Animalia.

2. **Defining Protista**:
- The kingdom Protista includes primarily unicellular organisms. This kingdom encompasses a diverse range of organisms, including some that are similar to plants (like algae) and some that are similar to animals (like protozoa).

3. **Identifying the Exclusions**:
- The question asks what is excluded from the kingdom Protista. It is important to note that while Protista includes many unicellular organisms, it does not include all types of unicellular organisms.

4. **Analyzing the Options**:
- The options given are:
a) Some unicellular alga and fungi
b) No unicellular organism
c) Only unicellular prokaryotes
d) All the above

5. **Evaluating Each Option**:
- **Option a**: Some unicellular alga and fungi are indeed excluded from Protista. This is a valid statement.
- **Option b**: This is incorrect because Protista does include unicellular organisms.
- **Option c**: This is also incorrect because unicellular prokaryotes (like bacteria) are classified under Monera, not Protista.
- **Option d**: This cannot be correct since not all statements are true.

6. **Conclusion**:
- The correct answer is **Option a: Some unicellular alga and fungi** are excluded from the kingdom Protista.