Warfare jet engine and space exploration
These preparations are called Vaccines. A vaccine is a biological preparation that provides active acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing micro-organism and is often made from weakened or killed forms of the microbe, its toxins or one of its surface proteins.
Answer:
c
Explanation:
Gas is our largest issue, therefore that would be the most reliable answer.
Which is the first indicator of an infection in the body?
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B. an increase in the number of WBCs in the blood</span>
