The first Eukaryotes to evolve are

Options

A. Bryophytes
B. Green Algue
C. Blue-green Algae
D. Protistans

Answer

To determine the first eukaryotes to evolve, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Biological Classification**:
- The classification system divides living organisms into different kingdoms. The first two kingdoms are Monera and Protista.

2. **Characteristics of Monera**:
- Monera includes unicellular organisms that are prokaryotic.
- Prokaryotes have a primitive cell structure and lack membrane-bound organelles.

3. **Characteristics of Protista**:
- Protista also includes unicellular organisms, but they are eukaryotic.
- Eukaryotes have a more complex cell structure with well-defined organelles, including membrane-bound organelles.

4. **Identifying the First Eukaryotes**:
- Since Protista is the kingdom that includes eukaryotic organisms, it follows that the first eukaryotes to evolve would be found in this kingdom.

5. **Analyzing the Options**:
- The options provided include bryophytes (which are plants), green algae (which are also considered plants), and blue-green algae (which are cyanobacteria and classified under Monera).
- Since none of these options represent eukaryotes correctly except for Protista, we conclude that Protista is the correct answer.

6. **Final Answer**:
- The first eukaryotes to evolve are classified under the kingdom Protista.