None because they are children play toys not scientific tools!
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<span>Ozone intake can cause irritation to the respiratory system. It can also inhibit absorption of certain nutrients. Certain people are more at risk for example children. This is because thier lungs are still developing. They are also more likely to be outdoors and more likely than adults to have asthma. Symptoms shortness of breath and coughing.</span>
The answer is B, or They can survive in changing salinity.
A complex chemistry is most related to maintaining a stable internal environment.
