Which is a way that biotechnology has not society? bacteria is used to grow vaccines in large quantities. drugs can be developed without the use of animal research. new, stronger bacteria have evolved that are resistant to antibiotics. diabetics have a steady supply of inexpensive insulin.

Well, you just have to look for the one that does not have any positive/benefit.

1. is not the answer, since vaccines prevent countless people from disease and death. 

2. is not the answer since animal abuse is not okay and the statement shows that science has become more efficient, therefore helping society become more efficient

3. is definitely not a positive effect that biotech has had on society. antibiotic-resistant bacteria endangers everyone. Therefore, this is the answer :)

4. is not the answer because helping people with diabetes be able to afford their medication is very helpful.

The teacher is mostly talking about the distillation of a mixture