Question

Water vascular system is the characteristic of which group of the following?

• A. Porifera
• B. Gtenophora
• C. Echinodermata
• D. Chordata

Answer 1

The correct option is C

Echinodermata

The correct answer is option C:

Explanation of the correct option:

1. The water vascular system is for transportation, food and waste transportation, and respiration.
2. Echinodermata consists of a central annular tube and radial tubes running along each arm.
3. Water flows through these systems, allowing gas exchange, feeding, predation, and movement.

Explanation of the incorrect options:

Option A: Porifera phylum does not have a water vascular system. Gas exchange and excretion take place by a diffusion process

Option B: Gtenophora does not have a vascular system.

Option D: Chordata does not have the characteristic of a water vascular system.

Final answer: The water vascular system is the characteristic of Echinodermata.