Is the lack of adequate saliva due to diminished secretions by the salivary glands. xerostomia cholelithiasis dysphagia hematemesis submit

The one responsible of lack of adequate saliva because of the diminished secretions of salivary glands is caused by the xerostomia. A xerostomia is symptom in which is caused by a side effect when an individual is undergoing radiation that causes him or her to have reduced or absent of the flow of saliva.

phylogenetic tree is the tree of life or evolution tree. it shows the different branches of evolution. the sequence goes like tissues - coelom - backbone - endoskeleton - segmentation

the correct answer to this question is #5