\nMan has a four-chambered heart. Amphibians like frogs have three-chambered hearts except for crocodiles which have a four-chambered heart. Fish has a two-chambered heart.
\n\n"},"encodingFormat":"text/html","position":1,"text":"4, 3, 4 and 2"},"comment":{"@type":"Comment","text":"It is a muscular organ in most of the animals."},"eduQuestionType":"Multiple choice","encodingFormat":"text/markdown","learningResourceType":"Practice problem","suggestedAnswer":[{"@type":"Answer","comment":{"@type":"Comment","text":"It is a wrong option."},"encodingFormat":"text/html","position":0,"text":"3, 3, 4 and 2"},{"@type":"Answer","comment":{"@type":"Comment","text":"It is a wrong option."},"encodingFormat":"text/html","position":2,"text":"4, 2, 4 and 2"},{"@type":"Answer","comment":{"@type":"Comment","text":"It is a wrong option."},"encodingFormat":"text/html","position":3,"text":"3, 2, 4 and 2"}],"text":"The correct sequence of number of chambers of heart in crocodile, frog, man and fish is :"},"name":"Quiz on Diversity in Living Organisms","typicalAgeRange":"10-17","url":"https://www.embibe.com/questions/The-correct-sequence-of-number-of-chambers-of-heart-in-crocodile%2C-frog%2C-man-and-fish-is-%3A/EM8943498"}
A taxonomist during his voyage found a solitary marine animal with spines on skin made of calcium carbonate. However, its coelom was made of pouches pinched off from endoderm. Assign the specimen to the most appropriate Phylum.