Mark the incorrect statement for the Phyla, platyhelminthes to Echinodermata.

Options

A. All groups represent organ/organ-system level of organization
B. All are triploblastic
C. All are eukaryote
D. None of these

Answer

To solve the question of identifying the incorrect statement regarding the phyla from Platyhelminthes to Echinodermata, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Phyla**:
- Platyhelminthes (flatworms) are known for being bilaterally symmetrical and triploblastic.
- Echinodermata (like starfish and sea urchins) are characterized by radial symmetry and a unique water vascular system.

2. **Analyze the Statements**:
- **Statement 1**: "More than one organ performs generalized function."
- This is true for both phyla as they exhibit organ systems where multiple organs can perform similar functions.
- **Statement 2**: "All are triploblastic."
- This is true. Both Platyhelminthes and Echinodermata are triploblastic, meaning they have three germ layers: ectoderm, mesoderm, and endoderm.
- **Statement 3**: "All are echinodermata."
- This is incorrect because Platyhelminthes and Echinodermata are two distinct phyla. Not all organisms in the first phylum are echinoderms.
- **Statement 4**: "None of these."
- This implies that all previous statements are correct, which is not true since Statement 3 is incorrect.

3. **Conclusion**:
- The incorrect statement is **Statement 3**: "All are echinodermata."

### Final Answer:
The incorrect statement is: "All are echinodermata."

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