Blank 1: Hygiene
Blank 2: Vectors
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Answer:
Explanation:
The blood agglutinate or clots
This does not happen when serum containing B antibodies is added to red blood cells carrying the A antigen because an antibody reacts only with its specific antigen and no other.
Hope it helps!
Answer:
Tell them that they have autism.
Explanation:
the surroundings or conditions in which a person, animal, or plant lives or operates.
sources:https://www.google.com/search?q=what+is+enviorment&oq=what+is+enviorment&aqs=chrome..69i57j0l5.4423j0j7&sourceid=chrome&ie=UTF-8