Well, we know that a lot of the ancient civilizations were first-handedly affected by disease. For example, Native Americans were severely impacted by the spread of pestilence. 90% of their population was completely killed off. I think that would be enough to concern them, don't you think? :P
Answer:
Most common (as in those appearing in over half of cases) would be polyuria with polydipsia, weight loss, fatigue, and dyspnea. Vomiting is probable too, as well as preceding febrile illness, abdominal pain, and polyphagia.
Answer:
Phonemes
Explanation:
Learning the rules of syntax for a specific language best illustrates the acquisition of phonemes
