Presence of water transport sysetm is characteristic of which phylum?

Answer

To determine which phylum is characterized by the presence of a water transport system, we can follow these steps:

1. **Understand the Water Transport System**: The water transport system, also known as the canal system, is essential for various functions in organisms, including respiration, excretion, and nutrition.

2. **Identify Organisms with a Canal System**: We need to find out which organisms possess this specific water transport system.

3. **Recall Characteristics of Phyla**: Among the different animal phyla, we should focus on those known for having a canal system.

4. **Recognize Phylum Porifera**: The phylum that is recognized for having a water transport system is Porifera, which includes organisms commonly known as sponges.

5. **Describe the Functionality**: In sponges, water enters through numerous pores on their body, facilitating the canal system that aids in respiration, excretion, and nutrition.

6. **Conclude the Answer**: Therefore, the phylum characterized by the presence of a water transport system is Phylum Porifera.

### Final Answer:
The presence of a water transport system is characteristic of Phylum Porifera.