Answer:
combining vowel is I think wrong...
Answer:
The positive control is an experiment that involves the repetition of the testusing working treatment. ... This helps the analyst compare the result to a new experiment against an already results that are already known. Negative controls are always used during microbiology testing.
Answer:
to treat any possible bacterial infection
Explanation:
the main cause of most illnesses could be a bacterial infection
Explanation:
its calls would be softer
