<span>vaccine
The wording given is pretty much the exact definition of a vaccine. The key to how a vaccine works is that it provides to the immune system, samples of the surface proteins of the infectious materials. With those samples available, the immune system is able to produce antibodies that react to those proteins.</span>
A biome is an area of the planet that can be classified according to the plants and animals that live in it. 5 - 12+ Earth Science, Geography, Physical Geography.hope this helps,got it from google !
Answer:
D. An email from a journalist to a college professor asking for an
interview
"<span>No, because group C should be the control group" is the one among the choices that are given in the question that correctly answers the question. The correct option among all the options that are given in the question is the last option or option "D". I hope the answer has come to your help.</span>
The answer to your question is D, a decrease in oxygen levels in the blood during exercise.
Hope this helps!
