NEET BIOLOGY

Detailed explanation-1: -Endoderm forms the epithelium-a type of tissue in which the cells are tightly linked together to form sheets-that lines the primitive gut. From this epithelial lining of the primitive gut, organs like the digestive tract, liver, pancreas, and lungs develop.

Detailed explanation-2: -Endoderm cells give rise to certain organs, among them the colon, the stomach, the intestines, the lungs, the liver, and the pancreas.

Detailed explanation-3: -Each layer develops into a specific set of tissues and organs. Animals develop either two or three embryonic germs layers (Figure 4). The animals that display radial symmetry develop two germ layers, an inner layer (endoderm) and an outer layer (ectoderm).

Detailed explanation-4: -The ectoderm gives rise to the nervous system and the epidermal skin cells, the mesoderm gives rise to the muscle cells and connective tissue in the body, and the endoderm gives rise to the digestive system and other internal organs.