This is known as adaptive immunity. Vaccines utilize this adaptive immunity and memory to expose the body to the antigen without causing disease, so that when they live pathogen infects the body, the response is rapid and the pathogen is prevented from causing disease.
False it's unhealthy even if your exercising your just gonna gain the weight back.
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If you wish to lower your risk of heart disease, then you should make sure to be physically active, quit smoking if you do, eat healthy foods, lower blood pressure, etc.
I'll go with the first one
Answer:
A
Explanation:
Liberal fluid intake, two liters or more is recommended during times of heavy sweating so that balance will be created between dehydration and hydration.