Answer:
Zika is spread mostly by the bite of an infected Aedes species mosquit. Zika virus directly infects brain cells and evades immune system detection. Zika virus disease is generally mild, and severe disease requiring hospitalization and deaths are uncommon.
Explanation:
Explanation:
How Age and Exercise Affect Your Max Heart Rate. The relationship between the heart and exercise has been studied for more than six decades and the research is clear: Max heart rate—the highest heart rate you can safely hit during exercise—decreases with age regardless of lifestyle or level of fitness.
You can only see it if you use a microscope and you cannot taste it or smell it