Water vascular system or ambulacral system is a unique and complex system specially present in?
Correct answer: C. Echinoderms
- A. Sponges
- B. Arthropods
- C. Echinoderms
- D. Fishes
Explanation
Echinoderms, which include organisms like starfish, sea urchins, and sea cucumbers, possess a unique and complex system called the water vascular system or ambulacral system. This system consists of a network of fluid-filled canals and appendages called tube feet, which are used for locomotion, feeding, and respiration.
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About Kingdom Animalia
Animals are multicellular, heterotrophic eukaryotes whose cells lack cell walls and chloroplasts, with specialised tissues in most groups. Coverage includes body symmetry, tissue layers, coelom, segmentation and levels of organisation, plus major phyla such as Porifera, Cnidaria, Platyhelminthes, Annelida, Arthropoda, Mollusca and Chordata.
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