Answer:
because it can cause you severe reaction that could kill you
Explanation:
under what circumstance does a negative cell presents An antigen to another negative cell
Answer:
cyanobacteria
cyanobacteria is The answer is tiny organisms known as cyanobacteria, or blue-green algae. These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and, yes, oxygen
Explanation:
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