Read the following statements and find out the incorrect statement.

Options

A. Algae usually reproduce vegetatively by fragmentation , asexually by formation of different types of spores and sexually by formation of gemmates.
B. Algae are classified into there classes , pteridophytes into four classes and angiosperm into two classes .
C. Algae are chlorophyll bearing simple thalloid , autotrophic and largely aquatic organisms .
D. The plant body of algae is more differentiated than that of bryophytes.

Answer

To solve the question of identifying the incorrect statement among the provided options, we will analyze each statement step by step.

### Step-by-Step Solution:

1. **Statement Analysis**:
- **Statement 1**: "Algae usually reproduce vegetatively by fragmentation, asexually by formation of different types of spores, and sexually by formation of gametes."
- **Analysis**: This statement is correct. Algae reproduce through various methods including vegetative (fragmentation), asexual (spores), and sexual (gametes).

2. **Statement 2**: "Algae are classified into three classes. Pteridophytes into four classes and angiosperms into two classes."
- **Analysis**: This statement is also correct. Algae are indeed classified into three main classes (Chlorophyceae, Pheophyceae, Rhodophyceae), Pteridophytes into four classes (Cilopsida, Lycopsida, Spanopsida, Teropsida), and angiosperms into two classes (Dicotyledons and Monocotyledons).

3. **Statement 3**: "Algae are chlorophyll bearing, simple, phthaloid, autotropic and largely aquatic organisms."
- **Analysis**: This statement is correct. Algae are simple, chlorophyll-containing, autotrophic organisms that are primarily found in aquatic environments.

4. **Statement 4**: "The plant body of algae is more differentiated than that of bryophytes."
- **Analysis**: This statement is incorrect. Bryophytes (like mosses and liverworts) have a more differentiated structure compared to algae. Bryophytes are often referred to as the amphibians of the plant kingdom because they require water for reproduction and have more complex structures than algae.

### Conclusion:
The incorrect statement is **Statement 4**: "The plant body of algae is more differentiated than that of bryophytes."