The answer for your question is b and c.
Hope this helps:)
Answer:
Pros:
Can extend lives
Can create organs
Help eliminate weak genes
Cure disorders
Cons:
Limits sense of individuality
Potential for faster aging
Can be used for exploitation
Debatable ethically
Hope this helps :0)
Microbes. Bacteria, for example, convert nitrogen and carbon dioxide from the air into usable components that plants and animals can use as essential building blocks. A loss of all microbes would be terrible news for living organisms that can't create or take in these essential nutrients on their own.