<span>The answer is he discovered a new type of medicine that could treat infections. Through research and experimentation, Fleming found a microbes decimating mold which he would call penicillin in 1928, making ready for the utilization of anti-infection agents in present day human services. He was granted the Nobel Prize in 1945 and kicked the bucket on March 11, 1955.</span>
Answer:
The correct answer is A.
Explanation:
A mutagen changes the level of mutations that occur in the DNA either by affecting it physically or chemically. This helps researchers create different organisms with altered phenotypes according to what the research needs so that the genes can be investigated further under a controlled environment.
So the answer is A.
I hope this helps.
Answer:
c
Explanation:
because in populated areas people are independent