Asked by Chuck Bass
Animals with digestive tracts and circulatory systems typically have germ layers.
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three (triploblastic)
Animals with a digestive tract and a circulatory system are typically triploblastic — they have ectoderm, mesoderm, and endoderm. The mesoderm gives rise to muscles, circulatory tissues, and many internal organs.
Animals with a digestive tract and a circulatory system are typically triploblastic — they have ectoderm, mesoderm, and endoderm. The mesoderm gives rise to muscles, circulatory tissues, and many internal organs.
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