'Water-vascular' system is found in
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The water vascular system can be referred to as a hydraulic system used by echinoderms, such as sea stars and sea urchins, helping in locomotion, food and waste transportation, and respiration. The system is composed of canals connecting numerous tube feet.
- Sea anemone
- Sea-cucumber
- Sea-pen
- Sea-horse
The Correct Option is B
Solution and Explanation
'Water-vascular' system is found in sea-cucumber.
The water vascular system is referred to as a hydraulic system typically used by echinoderms for locomotion, food and waste transportation, as well as respiration. Echinoderms are marine invertebrates that include sea urchins, starfish, brittle stars, and sea cucumbers. The water vascular system is a division of the coelom, which is the most distinctive feature of echinoderms. It is a system of canals and appendages of the body wall. It is also termed an ambulacral system, which functions as a means of locomotion. It comprises a madreporite or sieve plate, stone canal, water ring or ring canal, radial canals, and podia or tube feet.
Therefore, the correct answer is option B.
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Concepts Used:
Animal Kingdom
Animals are eukaryotic, multicellular species that belong to the Kingdom Animalia. Every animal has a distinct characteristic. They get energy either by feeding on plants or on other animals. There are millions of species that have been recognized, few shares similar characteristics while others vary drastically.
Kingdom Animalia comprises all animals. In the midst of the five kingdoms, the largest kingdom is the animal kingdom. Animals are multicellular eukaryotes. Though, like plants, they do not possess chlorophyll or a cell wall. Therefore, members of the animal kingdom indicate a heterotrophic mode of nutrition. Kingdom Animalia is further classified into ten different subphyla based on their body designs or differentiations.
The different phyla of the Kingdom Animalia are as follows:
- Porifera
- Coelenterata (Cnidaria)
- Platyhelminthes
- Nematoda
- Annelida
- Arthropoda
- Mollusca
- Echinodermata
- Hemichordata
- Chordata
Read More: Classification of Animal Kingdom