OESOPHAGUS STOMACH
ECHINODERMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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one-way gut with 2 openings.
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two-way gut with 1 openings.
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gastrovascular cavity
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pseudocoelom
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Detailed explanation-1: -Chordates have a tube-like digestive system that starts with a mouth and ends with an anus or analog structures. Digestive organs found in all chordates include a mouth, stomach, intestines, and anus, but complexity of the digestive system varies significantly between species.
Detailed explanation-2: -All chordates (including this human) use a mouth, stomach, and intestines for digestion.
Detailed explanation-3: -Chordates have three embryonic cell layers. They also have a segmented body with a coelom and bilateral symmetry. Chordates have a complete digestive system and a closed circulatory system.
Detailed explanation-4: -"The four distinctive characteristics that, taken together, set chordates apart form all other phyla are the notochord; single, dorsal, tubular nerve cord; pharyngeal pouches; and postanal propulsive tail.