The embryonic germ layer of tissue in animals that develops into the digestive tract and organs derived from the digestive tract is the:

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The endoderm is the embryonic germ layer that develops into the digestive tract and organs derived from the digestive tract, such as the liver, pancreas, and lungs. The pachyderm is not a germ layer, but rather an outdated term used to describe a group of thick-skinned animals. The ectoderm develops into the nervous system, skin, and hair. The mesoderm develops into muscle, bone, and other connective tissue. The protoderm is not a germ layer, but rather a layer of cells in plant embryos.

The Embryonic Germ Layer of Tissue in Animals That Develops