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a hormone that causes the secretion of gastric juices into the stomach.
the inner body tissue layer that forms the gut and other internal organs.
relaxation of the cardiac muscle.
pigments that occur in the brightly coloured, yellow, orange or red parts of the plant, such as...
the formation of a relatively complex chemical compound from simpler substances.
a v-shaped extension of the mammalian soft palate, which closes the opening to the nasal...