OESOPHAGUS STOMACH
ECHINODERMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It’s a vertabrate
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Only one cell layer
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Vascular system
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Slow regeneration
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Detailed explanation-1: -Water vascular system is a characteristic feature of the phylum Echinodermata. It consists of an array of radiating channels, tube feet, and madreporite. The water vascular system helps in locomotion, food capturing, and respiration.
Detailed explanation-2: -Echinoderms possess a unique ambulacral or water vascular system, consisting of a central ring canal and radial canals that extend along each arm. Water circulates through these structures and facilitates gaseous exchange as well as nutrition, predation, and locomotion.
Detailed explanation-3: -Although they may appear very different, echinoderms all have two major defining characteristics that set them apart from all other animals: a water vascular system and five-sided radial symmetry.
Detailed explanation-4: -Pentamerous Radial Symmetry: They all have pentamerous radial symmetry. Wow, those are big words. Let’s say it together. Tube Feet: They all have tube feet. Regenerate: They can all regenerate body parts and tissues. Spiny Skin: They all have spiny skin.
Detailed explanation-5: -Madreporite. Stone canal. Circular ring canal. Radial canals. Lateral canals. Tube feet. 11-Dec-2015