<em>The property of high specific heat capacity allows highly regulated internal body temperatures for all organisms</em>. While this is a true statement, it does help to explain fwater's existence as primarily a liquid in living systems.
A 15-month-old child, equivalent to a child of 1 year and 3 months of age, should have began weaning from bottle feeding from 6 months of age. Tooth decay or dental caries are commonly associated with prolonged bottle feeding as the sugars and other substances in milk; when drank from a teat from a bottle; prolongs the exposure of teeth to the milk, leading to overgrowth of bacteria causing dental caries.
A virus is not a bacteria, but it is caused by a bacteria. A virus causes the immune system to weaken.